A blood and urine sample were collected.

Information was collected through the use of questionnaires, and registries. Using a questionnaire, information was collected about environment; where participant lives and works, and about what they do. In addition, information was collected about general physical health, social characteristics, housing and neighborhood characteristics, environmental characteristics, substance use, congenital malformations, marital status and presence of partner, household composition, social support, housing, neighborhood, environmental exposures, cigarette smoking, and alcohol intake.

Weight and blood pressure were measured.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Data were abstracted from routine antenatal medical records (i.e. they are not measurements conducted specifically for research). Data were only abstracted for women who had indicated at recruitment that they were happy for the medical records to be obtained. Information was collected about gestational age, hypertensive disorder, pre-eclampsia, gestational hypertension, diabetes during pregnancy, anaemia, proteinuria, blood pressure, weight (absolute, average and change in pregnancy), oedema, weight of placenta, glycosuria and haemoglobin.

Information was collected through the use of questionnaires, and registries. Using a questionnaire, information was collected about feelings during pregnancy. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, substance use, and parenting. Current health and symptoms, infections, eating disorders, history of medications and dietary supplements, hospital admissions, physical activity, feelings about body image before and during pregnancy, the effects of pregnancies (study pregnancy and other), infertility, conception, previous breastfeeding and feelings towards pregnancy, information was collected. Social characteristics information such as occupation was collected, as well as information about smoking and alcohol intake habits (both participant’s and partner’s).

Amongst mental health measures, depression, anxiety, feelings, life events, body image, and personality were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Using a questionnaire, information was collected about health, partner, home, childhood and beliefs and attitudes. In addition, information was collected about general physical health, obstetric health, mental health, social characteristics, partner information, and environmental characteristics. Current health symptoms, family medical history, allergies, hearing, vision, speech, bladder problems, accidents and injuries, hospital admissions and surgeries, menstruation and contraceptive use information was collected. Anthropometry measures were collected in a self-reported manner. Social characteristics information was collected, including household composition, social support and network, religion and childhood information.

Amongst mental health measures, locus of control was assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Using a questionnaire, information was collected about feelings, background, plans and preparations for the baby. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, substance use, parenting, and childcare. Current health and symptoms, infections, medications, physical activity, diet and nutrition, early sexual experiences information was collected. Social characteristics information such as education (participant and partner), family education, ethnicity, occupation (participant and partner), social class (participant and partner), financial difficulties, abuse in childhood, smoking and alcohol intake habits, was collected as well as parenting information including preparation for birth, feeding intentions, attitudes to breastfeeding and childcare plans.

Amongst mental health measures, depression, anxiety and childhood life events were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Using a questionnaire information was collected about feelings, amount of sleep, and reaction to the actual birth of baby. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, environmental characteristics, substance use, parenting. Current health and symptoms, infections, bladder problems, sleep, medications and dietary supplements, caffeine intake, hospital admissions, a dentist visit, contraceptive use, delivery, and the location of the birth information was collected. Anthropometry was self-reported. Social characteristics information such as occupation and social support, as well as smoking (participant and partner) and information about illicit drug use habits was collected as well as parenting information including feelings during labour/delivery, antenatal classes and childcare plans.

Amongst mental health measures, depression, anxiety and life events were assessed.

Very detailed prenatal, labour and early postnatal data were extracted from the obstetric medical records.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Using a questionnaire information was collected about lifestyle. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, housing and neighborhood characteristics, environmental characteristics, substance use, parenting, and childcare. Current health and symptoms, bladder problems, sleep, medications and dietary supplements, hospital admissions, physical activity, contraceptive use, menstruation, other pregnancies, and problems during pregnancies, smoking and illicit drug use habits information was collected. Social characteristics information such as occupation, marital status, financial difficulties, household composition, and social support information was collected as well as partner’s health, alcohol intake (participant as well) and aggression and affection levels. Housing and neighbourhood, parenting information such as feelings towards child (participants and partners), parenting skills and childcare use was also collected.

Amongst mental health measures, depression, anxiety, life events and job satisfaction were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Using a questionnaire information was collected about problems toddlers and their parents have. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, housing and neighborhood characteristics, environmental characteristics, substance use, and parenting. Current health and symptoms, bladder problems, sleep, medications and dietary supplements, hospital admissions, contact with health services, contraceptive use, menstruation, other pregnancies, and problems during pregnancies and physical activity information was collected. Social characteristics information such as occupation (participant and partner), marital status, financial difficulties, household composition, biological father involvement and social network and support was collected as well as illicit drug use habits, partner’s health, alcohol intake (participant and partner), and smoking habits (participant and partner) information. Housing and neighbourhood, and parenting information such as partner’s feelings towards child and parenting skills was also collected.

Amongst mental health measures, depression, anxiety, feelings and life events were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis)) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about parents' problems. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, housing and neighborhood characteristics, environmental characteristics, substance use, and parenting. Current health and symptoms, bladder problems, medications and dietary supplements, hospital admissions, contact with health services, as well as attitude toward health services, schooling, and work, dentist visit and physical activity, contraceptive use, menstruation, and other pregnancies information was collected. Social characteristics information such as occupation (participant and partner), marital status, household income, financial difficulties, household composition, biological father involvement, childhood and Illicit drug use habits, parenting information such as parents’ feelings towards child and parenting skills information was collected. Partner’s information on health, alcohol intake (participant and partner), smoking habits (participant and partner), aggression and affection levels, and relationship quality was collected as well as housing and neighbourhood information.

Amongst mental health measures depression, anxiety and life events were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

A hair and nail sample were collected.

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about problems parents have. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, substance use, childcare and child information. Current health and symptoms, bladder problems, special diets, medications and dietary supplements, hospital admissions, and contact with health services were included in the information that was collected as well as information on contraceptive use, menstruation, other pregnancies, problems during pregnancies and difficulties getting pregnant. Social characteristics information such as occupation (participant and partner), marital status, household income and expenditures, household composition, presence of other children and biological father involvement was collected. Partner’s children, health, alcohol intake (participant and partner), smoking habits (participant and partner), aggression and affection levels, and relationship quality information was collected. Finally, information was collected from the mother about who and how often someone else cares for the child, child attends when ill, child’s feeling towards siblings, strengths and difficulties, child’s health and time off work as well as attitude toward health services, and pets.

Amongst mental health measures life events were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about health and other problems. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, housing and neighborhood characteristics, environmental characteristics, and substance use. Current health and symptoms, bladder problems, sleep, medications and dietary supplements, and hospital admissions were included in the information that was collected. Contraceptive use, menstruation, other pregnancies, problems during pregnancies and difficulties getting pregnant were assessed as well. Social characteristics information such as education (participant and partner), occupation, financial difficulties, social network and support, and religious beliefs was collected as well as alcohol intake, and smoking habits, housing and neighbourhood and information about work and transportation.

Amongst mental health measures depression, anxiety, life events and self-esteem were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about lifestyle. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, neighborhood characteristics, environmental characteristics, substance use, and parenting. Current health and symptoms, bladder problems, medications and dietary supplements, hospital admissions, and contact with health services, contraceptive use, menstruation, and other pregnancies information was collected. Social characteristics information such as marital status, social network and support, religious beliefs and discrimination was collected as well as partner’s occupation, smoking habits (participant and partner), aggression and affection levels, relationship quality and satisfaction. Finally, housing, neighbourhood, and parenting information such as parents’ feelings towards the child and gambling behavior were collected also.

Amongst mental health measures depression, anxiety, life events and locus of control were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about the mother and the home. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, housing characteristics, environmental characteristics, substance use, parenting, and child information. Chest pains, sleep, accidents and injuries and physical activity information was collected as well as other pregnancies information. Anthropometry measures were collected in a self-reported manner. Social characteristics information such as education, occupation, marital status, household income and expenditures, financial difficulties, household composition, other children in the home, and involvement of biological father was collected as well as smoking and alcohol intake habits, housing, neighbourhood and parenting information such as parents’ feelings towards the child.

Amongst mental health measures, anxiety was assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about the other and the family. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, substance use, and child information. Current health and symptoms, medical history and family medical history, allergies, hearing and vision problems, infections, surgeries, and physical activity, contraceptive use, menstruation, other pregnancies, and hysterectomy/oophorectomy information was collected. Anthropometry measures were collected in a self-reported manner. Social characteristics information such as education (participant and partner), grandparents’ education, occupation (participant and partner), marital status, household income and expenditures, ethnicity (participant and partner), household composition, other children at home, involvement of biological father and discrimination was collected as well as information about alcohol intake habits and grandparental smoking history. Partner’s smoking habits (participant and partner), aggression and affection levels, and relationship quality were assessed as well as information about child’s strengths and difficulties and feelings towards siblings.

Amongst mental health measures anxiety was assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about having a 9-year-old. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, and parenting. Current health and symptoms, bladder problems, medications, and hospital admissions, contraceptive use, menstruation, information about other pregnancies, and problems during pregnancies information was collected. Anthropometry measures were collected in a self-reported manner. Social characteristics information such as marital status, social support and network and religious beliefs was collected as well as partner’s occupation, health and smoking and alcohol intake habits, relationship quality, and satisfaction. Finally, parenting information such as partner’s feelings towards the child was also collected.

Amongst mental health measures feelings and life events were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about the participant and their surroundings. In addition, information was collected about general physical health, obstetric health, diet and nutrition, social characteristics, housing and neighbourhood characteristics, environmental characteristics, and substance use. Information about hearing problems, medications and hormone replacement therapy was collected. Social characteristics information was collected such as marital status, occupation, household composition, other children in the house, and the involvement of the biological father. Housing, neighbourhood, work and transportation information was also collected.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about problems, as well as some features of lifestyle. In addition, information was collected about general physical health, obstetric health, mental health, diet and nutrition, social characteristics, partner information, housing characteristics, environmental characteristics, and substance use. Current health and symptoms, allergies, bladder problems, chest pains, dizziness and balance, sleep, accidents and injuries, hospital admissions, physical activity, contraceptive use, menstruation, information about other pregnancies and hysterectomy/oophorectomy information was collected. Social characteristics information such as occupation, household income and expenditure, and financial difficulties was collected as well as participant and partner’s smoking habits. Housing, neighbourhood, work, transportation and tv viewing information was also collected.

Amongst mental health measures depression and life events were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Questionnaire collected information about problems and lifestyle. Education was also assessed. In addition, information was collected about general physical health, obstetric health, diet and nutrition, social characteristics, partner information, environmental characteristics, substance use, and parenting. Current health and symptoms, infections, medications, hospital and admissions, contraceptive use, menstruation, information about other pregnancies and hormone replacement therapy information was collected. Anthropometry measures were collected in a self-reported manner. Social characteristics information such as marital status, social support and network was collected as well as smoking and alcohol intake habits, partner’s occupation, health, smoking habits, aggression and affection levels and relationship quality. Housing and parenting information such as partner’s feelings towards the child was also collected. Also, criminal and antisocial behaviour were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

A blood and urine sample were collected.

Information was collected through the use of questionnaires, and registries. Information was collected about what types of adult learning have been undertaken, reasons for studying, location and methods of study and learning outcomes. In addition, attitudes to adult learning and qualifications were also collected.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected about menstrual cycle, reproductive health, hormone use and medication use.

Anthropometry, blood pressure, and carotid intima media thickness were measured. A full body DXA scan was done.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries. Information was collected using 2 questionnaires. The first questionnaire collected information about home life, transport and accidents, physical activity, feelings, health, and general information. The second questionnaire collected information about eating habits. In addition, information was collected about general physical health, obstetric health, mental health, social characteristics, partner information, housing and neighbourhood characteristics, and substance use. Current health and symptoms, quality of life, chest pains, eating disorders, psychosis symptoms in the family, medications, accidents and injuries, physical activity, contraception use, menstruation, other pregnancies, hysterectomy/oophorectomy, and hormone replacement therapy information was collected. Anthropometry measures were collected in a self-reported manner. Social information such as occupation (participant and partner), marital status, household income and expenditure, financial difficulties, household composition, whether there are other children, involvement of the biological father, and social support and network was assessed as well as smoking and alcohol intake habits. Information about partner’s aggression and affection levels, relationship quality, height, laterality (participant and partner), and eye colour (participant and partner), and hair colour (participant and partner), was also collected, as well as, housing, neighbourhood, transport, gambling behaviour, and family life information.

Amongst mental health measures, depression, anxiety, life events, locus of control, and self esteem were assessed.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected about menstrual cycle, reproductive health, hormone use and medication use.

Anthropometry, blood pressure, grip strength, allergies, chair rise test and static balance were measured. Full body and hip DXA scan, pQCT scan were done.

Cognition was assessed through measures of verbal episodic memory, information processing, working memory, and executive function.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries. Information was collected about whether study child is in school or working, friendships and relationships with friends and family. Bladder and or urinary symptoms, periods and abnormal amounts of body hair, general physical health, obstetric health, child information, bladder problems, contraceptive use, menstruation, menopause, and unwanted excess hair information was collected as well as employment status, friendships, and academic ability and enjoyment information.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected through the use of questionnaires, and registries. Information was collected about family and home life, employment and finances, health, reproductive health, sexual health, feelings, alcohol and tobacco consumption and physical activity.

Participants who provided permission were linked to the National Health Service (NHS) Central Register, which provides data on death (including underlying and contributing causes and date), cancer (including type, site and date of registration (approximate date of diagnosis) and emigration (out of the UK).

Information was collected about menstrual cycle, reproductive health, hormone use and medication use.

Anthropometry, blood pressure, grip strength, allergies, acceleration forces (accelerometer), chair rise test and static balance were measured. Full body and hip DXA scan, pQCT scan and a 3D scan were done.

Cognition was assessed through measures of verbal episodic memory, information processing, working memory, and executive function.

A blood sample was collected.

Information was collected about menstrual cycle, reproductive health, hormone use and medication use.

Anthropometry, BCG injection and scarring, blood pressure, carotid intima media thickness, grip strength, allergies, chair rise test and static balance were measured. Full body and hip DXA scan, pQCT scan were done.

Cognition was assessed through measures of verbal episodic memory, information processing, working memory, and executive function.

A blood sample was collected.

Information was collected about the participant and their feelings at this stage in their partner's pregnancy from the Partner’s Questionnaire. In addition, information was collected about general physical health, diet and nutrition, social characteristics, parenting, and substance use. Physical activity and social information such as social support and network was collected, as well as information about parenting such as reaction and feelings towards pregnancy. Information about smoking habits, alcohol intake and use of illicit drugs was also collected.

Information was collected about the participant’s health, their partner, their childhood and their beliefs and attitudes from the You and Your Environment Questionnaire. In addition, information was collected about general physical health, mental health, social characteristics, partner information, housing and neighbourhood characteristics, and environmental characteristics. Information about current health and symptoms, family medical history, allergies, hearing, vision and bladder problems, infections, congenital malformations, accidents and injuries and surgery was collected. Anthropometry measures were collected in a self-reported manner. Social information such as marital status, being the biological father, having other children, childhood home and care, household composition as child was collected, as well as information about partner’s level of aggression and affection. Housing and neighbourhood information was also collected.

Amongst mental and cognitive issues, information about maternal care/warmth as child, childhood life events, and locus of control was collected.

Information was collected about the participant's state since the birth of the baby (how they felt, whether they got enough sleep and how they reacted to the actual birth) from the Being a Father Questionnaire. In addition, information was collected about general physical health, mental health, social characteristics, partner information, substance use, and parenting. Information about current health, symptoms and sleep, parenting (such as reaction and feelings towards birth, breastfeeding, fatherhood and help with child) was collected, as well as information about smoking and alcohol intake habits and use of illicit drugs. Information about feelings towards partner and social information such as occupation, and social support was also collected.

Amongst mental and cognitive issues, information about depression, anxiety and life events was collected.

Information was collected about health and lifestyle once the baby was over 6 months old from the The Baby and Me Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, substance use, and parenting. Information about current health, symptoms, sleep, medications and hospital admissions, parenting information (such as attitudes toward fatherhood and paternal enjoyment) was collected, as well as information about smoking and alcohol intake habits and use of illicit drugs. Social information such as occupation, financial difficulties, social support, abuse in childhood was also collected, as well as information about partner’s level of aggression and affection and their feelings toward partner since birth.

Amongst mental and cognitive issues, information about depression, anxiety, and life events was collected.

Information was collected about lifestyle, having and bringing up a toddler, and about yourself from the A Toddler in the House Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, substance use, and parenting. Information about current health and symptoms, sleep, medications, hospital admissions and physical activity was collected. Social information such as occupation, financial difficulties, social support and network was also collected, as well as information about partner’s health, relationship with partner, parenting information (such as attitudes toward fatherhood and paternal enjoyment), smoking and alcohol intake habits and use of illicit drugs.

Amongst mental and cognitive issues, information about depression, anxiety, and life events was collected.

Information was collected about lifestyle, the role in bringing up a child and any problems from the Partner’s Health Events and Feelings Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, housing and neighbourhood variables, environmental exposure and substance use. Information about current health and symptoms, sleep, medications, hospital admissions and physical activity was collected. Housing and neighbourhood information and social information such as occupation, marital status, financial difficulties, childhood home, abuse in childhood, and siblings was also collected, as well as information about partner’s aggression and affection levels, health, and relationship with partner. Information about smoking and alcohol intake habits, travel to work, feelings towards pets as well as laterality was also collected

Amongst mental and cognitive issues, information about depression, anxiety, life events and self esteem was collected.

A hair and nails sample was collected.

Information was collected about problems parents have from the Partner’s new questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, housing and neighbourhood characteristics, environmental characteristics, substance use, and parenting. Information about current health and symptoms, medications, and hospital admissions was collected as well. Housing and neighbourhood information and paternal enjoyment information and feelings towards pets was also collected, as well as social information such as marital status, household composition and other children, and information about partner’s health, smoking and alcohol intake habits (participant and partner), and employment.

Amongst mental and cognitive issues, information about life events was collected.

Information was collected about lifestyle, the role in bringing up a child and any problems from the Study Partner’s Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, and substance use. Information about current health and symptoms, sleep, medications, and hospital admissions was collected, as well as information about travel to work and activities on spare time. Social information such as education (participant and partner), occupation, marital status, household expenditure, financial difficulties, social support and network, religious beliefs, smoking, alcohol intake habits and use of illicit drugs was also collected.

Amongst mental and cognitive issues, information about depression, anxiety, life events and self esteem was collected.

Information was collected from the Partner’s Lifestyle Questionnaire. In addition, information was collected about general physical health, mental health, social characteristics, partner information, substance use, and parenting. Information about current health and symptoms, medications, hospital admissions, and contact with health services was collected, as well as information about the use of illicit drugs and gambling. Social information such as marital status, social support and network, religious beliefs and discrimination was collected, as well as information about relationship with partner and partner’s level of aggression and affection, health, feelings towards child, being the biological parent, and parenting information such as feelings towards having more children.

Amongst mental and cognitive issues, information about depression, anxiety, life events, and locus of control was collected.

Information was collected about accidents and injuries, the home, the household, how participant feels, occupation and lifestyle, and drinking, from the Partner and Home Questionnaire. In addition, information was collected about general physical health, diet and nutrition, social characteristics, partner information, housing and neighbourhood characteristics, environmental characteristics, substance use, and parenting. Information about chest pains, sleep, accidents and injuries, surgery, and physical activity was also collected. Anthropometry measures were collected in a self-reported manner. Information about smoking and alcohol intake habits and information about housing and neighbourhood was also collected, as well as social information such as education, occupation, marital status, household income and expenditure, financial difficulties, household composition and information about other children and parenting information such as paternal enjoyment, whether they live with the child, and feelings towards older child. Information about being the biological mother of the child was collected as well.

Information was collected about life circumstances, health, diet and lifestyle from the Father and Family Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics and substance use. Information about parents’ medical history, infections, eating disorders, history of medications and dietary supplements, hospital admissions, physical activity was also collected. Anthropometry measures were collected in a self-reported manner. Social information such as education, grandparental education, occupation, marital status, household income and expenditure, ethnicity, household composition, other children and siblings was collected, as well as information about the relationship with partner, partner’s ethnicity and aggression and affection levels. Smoking and alcohol intake habits information was also collected.

Amongst mental and cognitive issues, information about depression and anxiety was collected.

Information was collected about health, recent events, partner, family and friends, thoughts and feelings, and chemicals in the environment from the Father of a 9-Year-Old Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, and substance use. Information about current health and symptoms, medications, hospital admissions, physical activity was also collected. Anthropometry measures were collected in a self-reported manner. Social information such as marital status, social support and religious beliefs was collected, as well as information about relationship with partner, partner’s health, smoking habits, employment, feelings towards child, and aggression and affection levels. Smoke exposure and illicit drug use information was also collected.

Amongst mental and cognitive issues, information about life events and thoughts and feelings was collected.

Information was collected about activities, medications, occupation and lifestyle from the Father and Surroundings Questionnaire.

In addition, information was collected about general physical health, diet and nutrition, social characteristics, housing and neighbourhood characteristics, and environmental characteristics. Housing and neighbourhood and travel to work information was also collected.

Information was collected about health problems you may have, as well as some features of your lifestyle from the Lifestyle and Health of Partner Questionnaire. In addition, information was collected about general physical health, mental health, diet and nutrition, social characteristics, partner information, environmental characteristics, and substance use. Information about current health and symptoms, allergies, bladder problems, chest pains, dizziness and balance, sleep, contraception, accident and injuries, hospital admissions and physical activity was collected as well as travel to work and tv viewing information was also collected. Social information such as occupation, household income and expenditures, and financial difficulties, smoking habits and exposure to smoke was collected, as well as information about partner’s smoking habits.

Amongst mental and cognitive issues, information about depression, anxiety, and life events was collected.

Information was collected about health, life in the last 4 weeks, partner, medications, breaking the law, family and friends, diet and environment from the About Me Questionnaire. In addition, information was collected about general physical health, diet and nutrition, social characteristics, partner information, and substance use. Information abut current health and symptoms medications, hospital admissions, and physical activity was also collected. Anthropometry measures were collected in a self-reported manner. Information such as exposure to smoke, smoking and alcohol intake habits was collected, as well as other information such as travel to work, and crime. Social information such as education, marital status, and social support, was collected, as well as information about relationship with partner, partner’s heath, aggression and affection levels, smoking habits, education, employment and feelings towards child.

A blood sample was collected.

Information was collected about the types of adult learning undertaken, reasons for studying, location and methods of study and learning outcomes. In addition, information about attitudes to adult learning and qualifications was collected.

A blood sample was collected.

Information was collected about mental health, social characteristics, partner information, parenting, housing and neighbourhood, and environmental characteristics. Social information such as being the biological father of child, financial difficulties, household composition, and social support was collected as well as partner’s aggression and affection levels, being the biological mother (if partner is the biological mother). Parenting information such as whether they live with the child or not was also collected, as well as information about family life, statements about the home information, housing and neighbourhood information and travel to work and tv viewing information.

Amongst mental and cognitive issues, information about depression, life events, locus of control, and self esteem was collected.

Information was collected about home life, neighborhood, family, friends, employment, coping with life, physical activity and lifestyle and health from the Focusing on You Questionnaire. Information was also collected on use of medications, allergies gambling, alcohol and smoking, prostate and related health.

Anthropometric measurements were taken. Also, a full body DXA Scan, a 3D face shape scan, a blood pressure, carotid intima media thickness, and a pulse wave velocity measurement were done.

Blood samples, cord slices and placenta were collected.

Information was collected through the use of questionnaires and registries.

Some questions were child based and some were child completed. A questionnaire collected information about the baby and any problems with feeding, sleeping, waking and crying. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition and other characteristics. Information about current health and symptoms, doctor visits, hospital admissions, allergies, eczema and asthma, stools, sleep, and crying information was collected as well as diet and nutrition information including breastfeeding or bottle feeding, feeding difficulties, and dietary supplement information.

Amongst mental and cognitive issues information about development and behaviour was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Data was abstracted from obstetric and neonatal clinical records. Information was collected about intended and actual place of delivery, gestation and type of antenatal care, pregnancy prior to the onset of labour and delivery, ultrasound examinations, procedures and treatments during pregnancy, antenatal weight measurements and hospital admissions, labour and delivery, medications or analgesics to mother in labour or at caesarean section, maternal complications during labour or at caesarean section, the mother post-delivery, medications and procedures to mother post-delivery, maternal discharge and readmission post-delivery. Neonatal information was also collected, including details of placenta, state of baby after delivery, signs of asphyxia, resuscitation, other treatment given at delivery, paediatric examination, signs and symptoms in neonatal period, medication given to baby, treatments and investigations to the neonate, and discharge details.

Information was collected through the use of questionnaires and registries.

Some questions were child based and some were child completed. A questionnaire specifically collected information about the baby’s health and behaviour, relationship with the baby and reactions of other children to the baby. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, social characteristics, parenting, and other characteristics. Information about current health and symptoms, doctor visits, hospital admissions, surgical procedures, accidents and injuries, medications, immunizations, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, stools, hearing, vision problems, other health problems, sleeping, crying, teeth/dental problems, and tics/twitches was collected as well as diet and nutrition information including breastfeeding or bottle feeding, food frequency, feeding difficulties, and eating behaviours, pacifier use and thumb sucking. Environmental exposures information such as passive smoking and sleeping environment, as well as social information about children in household and siblings, and parenting information was also collected. Anthropometry measures were collected in a self-reported manner.

Amongst mental and cognitive issues information about development and temperament was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Hair and nail samples were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire collected information about accidents or problems the baby may have had, eating and drinking, temperament and the way he may be beginning to understand the world about him. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, and childcare and schooling. Information about accidents and injuries, medications, hearing, vision problems, other health problems, toilet training, and teeth/dental problems, diet and nutrition information including breastfeeding or bottle feeding, food frequency, feeding difficulties, eating behaviours, and dietary supplements was collected. Environmental exposures such as passive smoke, and contact with pets, childcare and schooling information such as who, where and when children are cared for was also collected.

Amongst mental and cognitive issues, information about development, language/vocabulary, communication and social development was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the “children in focus” clinic, cognitive, environmental, physical, and seeing, hearing and speaking measures were taken.

Information about diet, vision history, external eye inspection, eye colour was collected.

Memory was measured through a habituation task.

Anthropometry, eye movements, cover tests, visual acuity and photorefraction were measured as well.

Information was collected through the use of questionnaires and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and getting along with other children. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, social characteristics, and parenting. Information about current health and symptoms, doctor visits, hospital admissions, surgical procedures, immunisations, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, stools, growth problems, sleeping, crying, and tics/twitches, diet and nutrition information including feeding difficulties and food allergies was collected. Environmental exposures information such as sleeping environment was collected as well as social information such as the number of children in the household and siblings, and parenting information.

Amongst mental and cognitive issues information about development, parental concerns over development, behaviour, communication, temper tantrums/rages and life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about any accidents or problems child may have, eating and drinking, temperament and the way child may be beginning to understand the world. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, parenting, childcare and schooling, activities and other characteristics. Information about accidents and injuries, medications, hearing, vision, growth problems, toilet training, and teeth/dental problems, diet and nutrition information including breastfeeding or bottle feeding, food frequency, feeding difficulties, eating behaviours, dietary supplements was collected. Environmental exposures information such as passive smoke, contact with pets, busy roads, and hygiene was collected as well as information about parenting, childcare and schooling information such as who, where and when children are cared for. Information about activities such as toys/activities, pacifier use and thumb sucking was collected as well.

Amongst mental and cognitive issues information about temperament, language and vocabulary was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the “children in focus” clinic, environmental, physical and seeing, hearing and speaking measures were taken.

Information was collected about diet, vision history, external eye inspection and eye colour as well.

Anthropometry, tympanometry and hearing, , eye movements, cover tests, motor fusion, stereopsis, visual acuity, photorefraction were measured.

At the “children in focus” clinic, environmental, parenting, physical and seeing, hearing and speaking measures were taken.

Information was collected about vision history, external eye inspection, and eye colour.

Anthropometry, tympanometry and hearing, eye movements, cover tests, motor fusion, stereopsis, visual acuity, photorefraction and air pollution were measured .

A blood sample was collected.

At the “children in focus” clinic, cognitive, day care, environmental, physical and seeing, hearing and speaking measures were taken.

Information was collected about day care, diet, eye colour, vision history.

Cognitive development was assessed.

Anthropometry measures were taken, a tympanometry and hearing test, external eye inspection were done. Eye movements, cover tests, motor fusion, stereopsis, visual acuity, and photorefraction were measured as well.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and how child gets along with other children. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, and activities. Information about current health and symptoms, doctor visits, hospital admissions, surgical procedures, immunisations, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, stools, hearing, vision problems, sleeping, crying, diet and nutrition, and food allergies was collected. Environmental exposures information such as sleeping environment and information about activities such as toys/activities and outings was collected as well.

Amongst mental and cognitive issues information about development, parental concerns over development, gender behaviour, temper tantrums/rages, and life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and how child gets along with other children. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, parenting, childcare and schooling, , substance use, activities and other characteristics. Information about accidents and injuries, medications, hearing, vision, speech problems, other health problems, toilet training, and teeth/dental problems, diet and nutrition information including food frequency, feeding difficulties, eating behaviours, dietary supplements and alcohol use was collected, as well as information about activities such as tv viewing, indoor/outdoor activities, pacifier use and thumb sucking . Anthropometry measures were collected in a self-reported manner. Environmental exposures information such as passive smoke, contact with pets and hygiene and information about parenting, childcare and schooling information such as who, where and when children are cared for was also collected.

Amongst mental and cognitive issues information about temperament, language/vocabulary, and communication was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

A hair sample and a nail sample were collected.

At the “children in focus” clinic, day care, environmental, physical and seeing, hearing and speaking measures were taken.

Information was collected about day care diet vision history and eye colour.

Speech and language were assessed.

Anthropometry measures were taken. A tympanometry and hearing test and external eye inspection, cover tests were done and eye movements, motor fusion, stereopsis, visual acuity, and photorefraction were measured as well.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and how child gets along with other children. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, parenting, activities and other characteristics. Information about current health and symptoms, hospital admissions, surgical procedures, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, stools, growth problems, sleeping, crying, and tics/twitches, diet and nutrition information including food allergies was collected. Parenting information and information about activities such as tv viewing and outings, pacifier use and thumb sucking and laterality was collected as well.

Amongst mental and cognitive issues information about development, parental concerns over development, behaviour, gender behaviour, temper tantrums/rages, social development and life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the “children in focus” clinic, physical and seeing, hearing and speaking measures were taken.

Information about eye colour was collected.

Anthropometry measures were taken. A tympanometry and hearing test and external eye inspection and cover tests, were done and eye movements, motor fusion, stereopsis, visual acuity, and photorefraction were measured as well.

A blood sample was collected.

A hair sample and nail sample were collected.

At the “children in focus” clinic, cognitive, daycare, environmental, physical and seeing, hearing and speaking measures were taken.

Information was collected about day care, diet, dental observations, eye colour, eye preference and vision history.

Laterality was measured.

Anthropometry, blood pressure and pulse rate, tympanometry and hearing, , external eye inspection, eye movements, cover tests, motor fusion, stereopsis, visual acuity, photorefraction and were measured as well.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and how child gets along with other children. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, childcare and schooling, substance use, and activities. Information about accidents and injuries, medications, allergies, eczema and asthma, diarrhea or gastrointestinal problems, hearing, vision, speech, growth problems, other health problems, bed wetting/ bladder problems, teeth/dental problems, and tics/twitches, diet and nutrition information including food frequency, feeding difficulties, eating behaviours, dietary supplements, special diet and food allergies was collected. Anthropometry measures were collected in a self-reported manner. Environmental exposures information such as contact with pets, sleeping environment, and hygiene was also collected.

Amongst mental and cognitive issues information about parental concerns over development was collected.

Childcare and schooling information such as who, where and when children are cared for, school attendance, transport to school, school enjoyment, activities such as book reading, out of school activities, outings, indoor/outdoor activities, were assessed as well as alcohol use.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the “children in focus” clinic, daycare, environmental, physical and seeing, hearing and speaking measures were taken.

Information was collected about day care and diet, eye colour, and vision history.

Anthropometry measures were taken. A tympanometry and hearing test, cover tests, and external eye inspection were done. Eye movements, motor fusion, stereopsis, visual acuity, and photorefraction were measured as well.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaire specifically collected information about health and behaviour and how child gets along with other children. In addition, information was collected about physical health, mental and cognitive issues, parenting, childcare and schooling, and activities. Information about current health and symptoms, seen doctor, hospital admissions, surgical procedures, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, and sleeping was collected. Parenting, childcare and schooling information such as who, where and when children are cared for, school attendance, transport to school, and school enjoyment and information about activities such as tv viewing, toys/activities and activities with adults was also collected.

Amongst mental and cognitive issues information about development, parental concerns over development, temperament, language/vocabulary, gender behaviour, social development, and life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

A teeth sample was collected.

At the “children in focus” clinic, cognitive, physical and seeing, hearing and speaking measures were taken.

Cognitive development was assessed.

Anthropometry measures, blood pressure and pulse rate, were measured. Dental observations, observations of skin, hair and eyes were made and a tympanometry and hearing assessment.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about health and behaviour and how child gets along with other children as well as information from child’s own questionnaire. Information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, parenting, childcare and schooling, activities and other characteristics. Information about accidents and injuries, medications, reactions to medicines, immunisations, allergies, eczema and asthma, diarrhea or gastrointestinal problems, hearing, vision, speech, growth problems, other health problems, bed wetting/ bladder problems and teeth/dental problems, diet and nutrition information including, eating behaviours, school packed lunch, special diet and food allergies, parenting information, activities such as toys activities, book reading, activities with adults, pacifier use and thumb sucking was collected. Environmental exposures were also included in the information collected such as contact with pets, and hygiene. Anthropometry measures were collected in a reported manner.

Amongst mental and cognitive issues information about parental concerns over development, and temper tantrums/rages was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about health and behaviour and how child gets along with other children from mother as well as information from child’s own questionnaire. Information was collected about physical health, mental and cognitive issues, environmental characteristics, activities and other characteristics. Information about current health and symptoms, doctor visits, hospital admissions, surgical procedures, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, growth problems, sleeping, and tics/twitches, as well as information about activities such as tv viewing and outings, pacifier use and thumb sucking was collected.

Anthropometry measures were collected in a self-reported manner. Environmental exposures information such as sleeping environment, and sunlight was also collected.

Amongst mental and cognitive issues information about development, parental concerns over development, language/vocabulary, temper tantrums/rages and life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire collected information from child’s own questionnaire. Information was collected from a drawing and a self-description as well as from a choice of certain words they felt were descriptive of them. Also, it collected information about school (like it or not, teacher, transportation to school, mixity in classroom, drawing of school).

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the “children in focus” clinic, cognitive, environmental, parenting, physical and seeing, hearing and speaking measures were taken.

Information on diet and parenting was collected.

Speech and language and short-term memory were assessed.

Anthropometry, blood pressure and pulse rate, dental observations, lung function and fitness were measured. A tympanometry and hearing test and allergy test were done as well.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires collected information about health and behaviour and how child gets along with other children from mother as well as self-image and activities from the child. Information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, childcare and schooling and activities. Information about accidents and injuries, medications, hearing, vision, speech, growth problems, other health problems, bed wetting/ bladder problems, teeth/dental problems, tics/twitches, diet and nutrition information including feeding difficulties and eating behaviours was collected as well as information about childcare and schooling information such as who, where and when children are cared for, school attendance, type of school, transport to school, school enjoyment, and information about activities such as tv viewing, toys/activities, outings, indoor/outdoor activities. Anthropometry measures were collected in a reported manner. Environmental exposures information such as passive smoke, contact with pets and hygiene was also collected.

Amongst mental and cognitive issues information about temper tantrums/rages and parent-child conflict was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s health and behaviour from mother as well as information from child’s own questionnaire. Information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, social characteristics, parenting, substance use, and activities. Information about current health and symptoms, seen doctor, hospital admissions, surgical procedures, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, speech, growth problems, sleeping, diet and nutrition information including food frequency, feeding difficulties, eating behaviours, school packed lunch, dietary supplements and food allergies was collected as well as sleeping environment, social information about siblings and parenting information. Information concerning alcohol use, activities such as toys activities, help in the home, activities with adults and activities with siblings were also collected.

Amongst mental and cognitive issues information about development, parental concerns over development, language/vocabulary, communication, strengths and difficulties, social development, and life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

A blood and urine sample were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s health and behavior and also about child’s teeth. In addition, information was collected about physical health, mental and cognitive issues, diet and nutrition, childcare and schooling. Information about current health and symptoms, dental health and visits to the dentist, whether seen doctor, hospital admissions, surgical procedures, accidents and injuries, medications, infections, time off school due to ill health, growth problems, and bed wetting/ bladder problems, childcare and schooling information such as school enjoyment, special needs at school, educational problems, was collected. Anthropometry measures were collected in a self-reported manner.

Amongst mental and cognitive issues information about behaviour, Development and Well-Being (DAWBA), antisocial activities, and social cognition was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire collected information from child’s own questionnaire. Information was collected about headaches, sore throats, exposure to cats and what they’d like to be as adults.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, literacy/numeracy, motor skills, physiological and social information was assessed.

Information was collected about food and activity, nutrition, general health and interview with accompanying adult.

Reading abilities, and coordination were assessed.

A skin prick test was conducted and anthropometry, hearing, , vision and blood pressure and pulse rate were measured.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire specifically collected information from “me and my school” questionnaire. Information was collected about school, gender, and date of birth.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, motor skills, physiological, psychological and social information was assessed.

Information about friends and peers was collected.

Psychological measure such as antisocial activities, attention, behaviour during sessions, diagnostic Analysis of Nonverbal Accuracy (DANVA), gender behaviour, IQ, locus of control were taken.

Lung function was assessed and a tympanometry was done.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s health and behavior from mother and about the other children in their class, computer usage, and favorite things from the child. Information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, social characteristics, parenting, childcare and schooling, education, substance use, and activities. Information about current health and symptoms, doctor visits, hospital admissions, surgical procedures, accidents and injuries, medications, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, infections, time off school due to ill health, hearing, vision, speech, growth problems, other health problems, teeth/dental problems, sunburn, diet and nutrition information including food frequency, feeding difficulties, eating behaviours, school packed lunch, and special diet was collected. Anthropometry measures were collected in a self-reported manner. Environmental exposures information such as exposure to sunlight was also collected. Social information about siblings, parenting information, and information about own space, childcare and schooling information such as who, where and when children are cared for, type of school, transport to school, school enjoyment, behaviour /emotions after school, child’s enjoyment, difficulties, behaviour and ability at school as well as bullying, was collected, as well as information about alcohol consumption, out of school activities, indoor/outdoor activities help in the home and activities with siblings were assessed as well as computer, game consoles and internet use.

Amongst mental and cognitive issues, information about life events was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC), National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire specifically collected information from “my world” questionnaire which included information about the child’s bedroom, opinions on common social difficulties, gender, date of birth.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, literacy/numeracy, physiological information was assessed.

Reading skills were assessed.

Fitness, hearing, and oto-acoustic emissions were measured. Scoliosis, sitting height, waist circumference, weight, acne, DXA-whole body scans, bioelectric impedance, flexural dermatitis and anthropometry measures were taken.

A blood sample was collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s health and behavior from mother and information about self-image, parental relationships, preferences and performance at school, hand, foot and eye preferences from child study. Information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental characteristics, social characteristics, parenting, childcare and schooling, substance use, and activities. Information about immunisations, bed wetting/ bladder problems, sleeping and tics/twitches, diet and nutrition information including food frequency, feeding difficulties, eating behaviours, school packed lunch and dietary supplements was collected as well as social information from siblings, religion friendships and sleeping environment including bed sharing, parenting information such as a parenting measure, discipline, own space, and child’s relationship with parents, childcare and schooling information such as who, where and when children are cared for, type of school, transport to school, school enjoyment, favorite subjects, behaviour /emotions after school, educational problems, disciplinary problems, parental aspirations for school/career, and child’s school ability. Information about alcohol, cigarettes and drug consumption, activities such as out of school activities, favorite activities, help in the home, activities with adults, activities with siblings and toy use was also collected. Anthropometry measures were collected in a reported manner. Environmental exposures were also included in the information collected such as sleeping environment.

Amongst mental and cognitive issues information about language/vocabulary, communication, laterality, strengths and difficulties and mood and feelings was collected. Opinions on social difficulties and self-image were also assessed.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the lifecourse. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire specifically collected information from “rings and things” questionnaire. Information was collected about mobile phone usage, side effects of usage, type of phone used, pierced and clip-on earrings and other jewellery.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, physiological, psychological and social information was assessed.

Information was collected about food and activity, nutrition, and antisocial activities. The friends and peers and friends and school interviews were conducted .

Attention, inhibition, and depression were assessed.

Blood pressure, flow mediated dilation, inter-medial thickness, balance, laterality, smell, vision, scoliosis, sitting height, acne, bioelectric impedance and anthropometry measures were taken. A pulse wave analysis was done as well.

A blood, urine and mouth swab sample were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires collected information about child’s health and behavior from mother and information about numbers of teeth and fillings, brushing, body image, cosmetic aspects of teeth, dentists, anaesthetics for dental work, damage to teeth and drinks from child study.

Information was collected about physical health, mental and cognitive issues, diet and nutrition, environmental exposures, parenting, childcare and schooling, and activities. Information about current health and symptoms, dental health and visits to the dentist, doctor visits, medications, allergies, eczema and asthma, infections, time off school due to ill health, speech problems, diet and nutrition information including eating behaviours and dietary supplements was collected. Social information such as number of children in household, siblings, religion, friendships and romantic relations as well as parenting information, childcare and schooling information such as type of school, transport to school, school enjoyment, special needs at school, educational problems, activities such as help in the home and use of mobile phone, pacifier use and thumb sucking, the use of earrings and other jewelry was collected.

Amongst mental and cognitive issues information about development and well-being (DAWBA), antisocial activities, social cognition and body image was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire specifically collected information from “school life and me” questionnaire. Information was collected about school (present and previous term).

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Some questionnaires were child based and some were child completed. Questionnaires specifically collected information about child’s health and behavior from mother and information about watches, psychosis-like symptoms, computer usage, gender, and date of birth from child study. Information was collected about physical health, mental and cognitive issues, diet and nutrition, social characteristics, parenting, childcare and schooling, employment, substance use and activities. Information about current health and symptoms, headaches, surgical procedures, accidents and injuries, medications, allergies, eczema and asthma, diarrhea or gastrointestinal problems, convulsions or seizures, time off school due to ill health, hearing, vision, speech problems, other health problems, sleeping, diet and nutrition information including dietary supplements, and alcohol, cigarettes and drug consumption was collected. Information about childcare and schooling such as who, where and when children are cared for, type of school, transport to school, school enjoyment, favorite subjects, disciplinary problems, parental aspirations for school/career, child’s enjoyment, difficulties and computer use at home and school, and information about child’s job aspirations was also collected as well as information about activities such as out of school activities, outings, favorite activities, help in the home, activities with adults and activities with siblings. Finally, social information about siblings, religion and friendships, parenting information such as parenting measure, discipline and own space was collected as well.

Amongst mental and cognitive issues, information about strengths and difficulties, social cognition, mood and feelings and attitude towards animals was collected. Child’s psychosis-like symptoms were assessed as well.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the lifecourse. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, motor skills, physiological, psychological and social information was assessed.

Borderline personality disorder, romantic relations, and friendships were assessed . Information about fractures was collected as well.

Information from activity monitors (accelerometers) and the health utilities index were used for health measures.

Motor skills measures (bike drawings) were taken and hearing, vision, scoliosis, sitting height, waist circumference, weight, grip strength and hands photocopy (ratio of length of second digit to that of fourth digit), blood pressure and pulse rate were measured.

A blood sample and saliva sample were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s entourage and diet from mother and information about tea and coffee drinking and fruit and vegetable consumption, sibling bullying and attitudes to skin colour from child study. Information was collected about mental and cognitive issues, diet and nutrition, and social characteristics. Ethnic differences and social information about siblings, and bullying by siblings was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, literacy/numeracy, motor skills, psychological and social information were assessed.

Antisocial activities, depression, parent-child interaction, psychosis, romantic relations, friends and peers and friendships were assessed.

Phonological awareness (spoonerisms), and the ability to pronounce printed words and phonemically regular nonwords (TOWRE) were assessed.

Anthropometry measures, motor skills, vision, scoliosis, waist circumference, weight, acne, a DXA whole body scan, blood pressure, hearing, vision were measured.

A blood, saliva and urine sample were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s health and behavior from the mother and information about food, text responses about memories of real events triggered by particular feelings, aches and pains in limbs and also about tiredness from the child. Also, information about reading, psychosis-like symptoms, music and singing from another questionnaire also from the child study. Information was collected about physical health, mental and cognitive issues, diet and nutrition, childcare and schooling, and substance use. Information about current health and symptoms, fitness, accidents, hospital admissions, medications, reactions to medicines, limb pain, fatigue, allergies, eczema and asthma, convulsions or seizures, infections, hearing, vision, sleeping, fatigue, tics/twitches, diet and nutrition information including food frequency, eating behaviours special diet and information about childcare and schooling information such as type of school, and school enjoyment, child’s job aspiration, reading habits, singing, musical instruments listening to music and weekend and general activities. Information about alcohol consumption, attitudes towards alcohol, smoking and drugs, road safety and transport use information was collected as well. Anthropometry measures were collected in a reported manner.

Amongst mental and cognitive issues information about strengths and difficulties, mood and feelings, body image and eating disorder was collected. Child’s psychosis-like symptoms, self-image, body image, dieting behaviour, eating disorders, antisocial behaviour and feelings and experiences were assessed as well.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, psychological, and puberty information was assessed.

Nutrition and menstruation information was collected. Personality was assessed as well.

Activity monitors and fitness were used for health measures and anthropometry and blood pressure measures were taken.

A blood sample and urine sample were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires specifically collected information about child’s health and behavior from the mother and information about self-image, fitness and tiredness, journeys to and from school, leisure time, using the toilet and wetting and soiling, ability, attitude , aspirations for and achievements in a selection of core subjects at school, math teaching that the respondent receives and plans for GCSE’s and beyond from the child study. Information was collected about physical health, mental and cognitive issues, and diet and nutrition social characteristics, parenting, school and education, substance use, diet and nutrition information including dietary supplements was collected. Social characteristics such as neighbourhood information, child-reported information about relationship with parents, school information including school enjoyment, ability and attitude toward learning, alcohol, smoking and drug use information was also collected.

Psychosis-like symptoms were assessed.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire specifically collected information from “boys’/girls’ experiences, thoughts and behavior” questionnaire. Information was collected about activities, body image, dieting, eating disorders, antisocial behaviours, accidents, feelings and experiences and attitudes to health issues of smoking, drinking and cannabis.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

At this time point the questionnaire was child completed. Questionnaire specifically collected information from “life of a teenager” questionnaire. Information was collected about school, neighbourhood, psychosis-like symptoms, tobacco and other substances use, relationships with parent figures and attitudes to learning.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, physiological, psychological and puberty information was assessed.

Information was collected about puberty. Inhibition and IQ were measured.

Memory was measured through the stop signal task, and development and well-being were assessed using the DAWBA.

Activity monitors, fitness and sleep were used to measure health. Anthropometry and parental measures were taken as well as face shape, hearing, lung function, moles, blood pressure, pulse rate, and vision.

Blood, hair, saliva, and urine samples were collected.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed. Questionnaires collected information about the children from mothers about advancement at school and plans for the next few years. Information about feelings towards school, school experiences and activities, importance of GCSE’s, whether they like and are good at the core subjects, home-school link, aspirations for the future, confidence and dealing with certain situations was collected directly from the child study. Information was collected about the standard of education and pupil behaviour at the child’s school, involvement in child’s education, homework and how much help is given to the child and what the carer would like the child to do after they turn 16, parental school involvement, type of school attended, school enjoyment, computer use, travel to school, aspiration for grades and further education, attitudes toward learning, attendance and clubs/activities. Information about weekend activities was also collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

A blood, hair, and urine sample was collected.

Information was collected through the use of questionnaires, and registries.

Questionnaires were child completed. Information was collected from the “you and your friends”, “internet use” and “plans and aspirations” questionnaires. Information identifying information of friends, nature of relationship, and which friend forms the group’s opinions on music, fashion and politics, was collected as well as information about time occupied by Internet use, material encountered when using the internet, online sites/services used, opinions with regard to online privacy, membership/use of social networking sites, and restrictions parents may have placed upon their Internet use. Also, they collected information about current activities, education, employment, future plans, money and debt, extra-curricular activities, moods and feelings, self-esteem, gambling habits, periods, physical development and mental well-being from the third questionnaire.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Some questions were child based and some were child completed.

Questionnaires specifically collected information about health and behaviour from mother and information about the way time’s spent, school attendance, life events, psychosis-like symptoms, locus of control, self-image, alcohol use, smoking, drug use, asthma and allergies and eating disorders, sensation seeking, deliberate self-harm, transport use and accidents and employment and occupation from child study. Information was collected about physical health, mental and cognitive issues, social characteristics, parenting, childcare and schooling, employment, substance use, activities and other characteristics. Information about allergies, eczema and asthma, diarrhea or gastrointestinal problems, fatigue and accidents was collected. Employment information such as current job status and job title, pocket money and transport use was collected as well. Anthropometry measures were collected in a self-reported manner. Social information about friendships, romantic relations, parenting information such as discipline and disagreements, and childcare and schooling information such as parental aspirations for school/career was collected as well as information about child’s attendance to school, alcohol, cigarettes and drug consumption, activities such as out of school activities, activities with adults, parental monitoring, and computer/internet use were assessed as well as general activities.

Amongst mental and cognitive issues information about temper tantrums/rages, antisocial activities, social cognition, mood and feelings, body image, eating disorders and self harm was collected. Child’s psychosis-like symptoms, locus of control, moods and feelings, life events, sensation- seeking and deliberate self-harm were assessed as well.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

At the focus clinic, health, physiological, psychological and puberty information was assessed.

Information was collected about antisocial activities, depression, psychosis, romantic relations, menstruation, friendships, chronic pain, dental health, sexual health, bullying, substance use and interview with accompanying adult.

Working memory was assessed through a computer task.

Activity monitors (accelerometers) were used for health measures. Anthropometry, blood pressure, flow mediated dilation, inter-medial thickness were measured. Tests for chlamydia and gonorrhea were conducted and a pulse wave analysis and liver scan were done.

A blood, urine, hair and saliva sample was collected.

Information was collected through the use of questionnaires, and registries.

Questionnaire was child completed. Questionnaire specifically collected information about how time’s spent, pets they have and have had, sensation seeking, friendships moods and feelings, education, university, employment, wheezing, asthma, weight loss, eating disorders, smoking, alcohol, other drugs, antisocial behaviour, travelling to/from school/work and accidents. Information was collected about physical health, mental and cognitive issues, environmental exposures, social characteristics, school/education, employment, substance use, activities and other characteristics. Information about current health, asthma, eczema and allergies, and accidents was collected. Social information such as friendships, school information such as qualifications, current studying status and university application was collected also, as well as employment information such as current occupation, job title and unemployment. Information concerning alcohol, cigarettes drug consumption, and activities such as computer and internet use, as well as general activities and transport use was collected as well.

Amongst mental and cognitive issues information about moods and feelings, dieting behaviour and eating disorders, and sensation seeking was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

A blood and urine sample was collected.

Information was collected through the use of questionnaires, and registries.

Questionnaire was child completed. Questionnaire specifically collected information about any children, gambling habits, deliberate self harm, smoking, alcohol, other drugs, antisocial behavior, education, employment, and training. Information was collected about physical health such as bladder/ bowel problems, contraceptive use, menstruation, pregnancy and hirsutism.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the life course. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Questionnaires were child completed. Information about mental health, sexual health, general health and well-being, intimate partner violence, tobacco, reproductive health, employment, education and training was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the lifecourse. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Questionnaires were child completed. Information about health, physical activity, vision, substance use, moods and feelings, life event, being a parent, childhood experiences, education and employment and voting was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the lifecourse. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

A blood and urine sample was collected.

Information about depression, psychotic experiences, alcohol, substance use, victimisation and trauma, moods and feelings, antisocial behaviour, reproductive health was collected through computerised questionnaires and face-to-face interviews . The Clinical Interview Schedule-Revised (CIS-R) was administered as well.

Blood pressure, pulse, cardiovascular health and anthropometrical measures such as height, weight, sitting height, hip, arm and waist circumference were taken. A 3D body scan, liver ultrasound scan, DXA (full body and hip) were done. A spirometry test was done and a bronchodilator response was tested to establish reversibility of airflow obstruction.

Cognitive tasks such as source monitoring, jumping to conclusions, predictive processing, N-Back working memory, emotion recognition, and stop signal were completed.

A blood and urine sample was collected.

Information was collected through the use of questionnaires, and registries.

Questionnaires were child completed. Information about social media, sexual experience, wellbeing, eating behaviour, being a parent, brothers and sisters, smoking and e-cigarette use, mental health, traumatic experiences, teeth, life events, and education and employment was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the lifecourse. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected through the use of questionnaires, and registries.

Questionnaires were child completed. Information about social media usage, gambling, eating behaviour, being a parent, smoking and e-cigarette use, life events, communication skills, monetary choice, general behaviour and deliberate self-harm was collected.

Children have been linked to the Clinical Practice Research Datalink (CPRD) database, Pupil Level Annual School Census (PLASC), Annual School Census (ASC) and National and the Pupil Database (NPD).

Participants were linked to residential addresses across the lifecourse. Linkages could be established to co-ordinates or health, political and administrative geographies. Participants could also be linked to neighbourhood data.

Information was collected about being a parent, and obtains details of any children born; about strengths and difficulties; about anxiety; information on healthcare and accidents; behaviour, moods and feelings which looked into thoughts of sadness, depression and self-harm; tanning and sun exposure, enquires about personality and ask how a respondent see themselves;employment; how participants may be affected by Life Events; eating behaviour, food preferences and finally, information on completion date, and date of birth information. In addition, information was collected from partner/friend about the behaviour and personality of participants.

Information was collected about health, well-being, physical activity, behaviour, monetary choice, life events, family and fertility, unusual experiences, education, attitudes to data sharing.

Information was collected about child measurements by midwife or from health records.

Biosamples were also collected including cord, placenta, meconium.

Information was collected about feeding and general health (from parent).

At the “children in focus” clinic, anthropometry and skinfold measures were taken.

Meconium, cord blood, placenta, and stool samples were collected.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about diet, general health, prescription and non-prescription medication, parent, grandparent, sibling interaction asthma/ eczema, allergies, activities/play, temperament and behavior (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, DXA, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

A stool sample was collected.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about feeding, general health, prescription and non-prescription medication, parent, grandparent, sibling interaction asthma/ eczema, allergies, activities/play, behavior and language (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

A stool sample was collected.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about feeding, general health, prescription and non-prescription medication, parent, grandparent, sibling interaction, allergies, activities/play, temperament, and language (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about feeding, general health, prescription and non-prescription medication, parent, grandparent, sibling interaction, asthma/ eczema, allergies, activities/play, temperament, and behavior (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

A blood and saliva (if refuses blood) sample was collected.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about feeding, diet, general health, prescription and non-prescription medication, parent, grandparent, sibling interaction, asthma/ eczema, allergies, activities/play, screen time, temperament, behavior and child care (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, acceleration forces, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about feeding, diet, general health, prescription and non-prescription medication, asthma/ eczema, allergies, activities/play, screen time, temperament, behavior and school (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

A stool sample was collected.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about general health, prescription and non-prescription medication, parents, grandparent, sibling interaction, asthma/ eczema, allergies, activities/play, temperament, behavior and school (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, blood pressure, acceleration forces, fine motor skills and gross motor skills were measured.

Personal and social development, language skills were measured as well.

A blood and saliva (if refused blood) sample were collected.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected about feeding, diet, general health, prescription and non-prescription medication, parents, grandparent, sibling interaction, asthma/ eczema, allergies, activities/play, screen time, temperament, behavior and school (from parent).

At the “children in focus” clinic, anthropometry, skinfolds, and blood pressure.

Linkages were made from the Child Health Record about birth details, anthropometry, immunisations, hearing screening and child health reviews.

Information was collected through a questionnaire which included information about physical and mental health, well-being, home and neighbourhood environment, parenting, childcare, schooling, diet, physical activity, cognitive ability, behavior, life events, socio-economic status (education, housing, income etc), substance use, and development (puberty).

Saliva samples will be collected.

Information was collected through a questionnaire which included information physical and mental health and well-being, home and neighbourhood environment, parenting, childcare, schooling, diet, physical activity, cognitive ability, behavior, life events, socio-economic status (education, housing, income etc), substance use, development (puberty).

Saliva samples were collected.