Cambridge City over-75s Cohort Study
The CC75C is a long-term follow-up study of a representative population-based sample of older people. It aimed to study the prevalence, incidence and risk factors for cognitive decline and dementia.
Overview
- Acronym
- CC75C
- Website
- CC75C
- Investigators
-
- Contacts
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General Design
- Study design
- Cohort
- Start - End Year
- 1985 -
- General Information on Follow Up (profile, frequency)
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After the first survey, participants were followed-up at year 2, 7, 10, 13, 17, 21, 23, 25 and 28, for a total of 10 surveys to date.
- Recruitment Target
-
- Individuals
- Number of Participants
- 2,166
- Number of Participants with Biological Samples
- 284
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
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Marker Paper
Fleming J, Zhao E, O'Connor DW, Pollitt PA, Brayne C. Cohort profile: the Cambridge City over-75s Cohort (CC75C). International Journal of Epidemiology, 2007; 36(1): 40-6.
PUBMED 17510074Timeline
Population
The baseline study targeted all men and women aged 75 years or older, who were registered with a selection of geographically and socially representative practices in Cambridge.
Selection Criteria
- Minimum age
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75
- Countries
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- United Kingdom
- Territory
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Cambridge
Sources of Recruitment
- Specific Population
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- Clinic patients
- Supplementary Information
-
Participants were registered with a selection of general practices in Cambridge.
Sample Size
- Number of Participants
- 2,166
- Number of Participants with Biological Samples
- 284
- Supplementary information about number of participants
-
Survey 1: 2166 participants
Survey 2: 1177 participants
Survey 3: 713 participants
Survey 4: 446 participants
Survey 5: 233 participants
Survey 6: 110 participants
Survey 7: 44 participants
Survey 8: 11 participants
Survey 9: 7 participants
Survey 10: 3 participants
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | CC75C - Survey 1 |
|
1985 | 1988 | |
| 1 | CC75C - Survey 2 |
|
|
1988 | 1990 |
| 2 | CC75C - Survey 3 |
|
|
1992 | 1993 |
| 3 | CC75C - Survey 4 |
|
|
1995 | 1995 |
| 4 | CC75C - Survey 5 |
|
|
1998 | 1999 |
| 5 | CC75C - Survey 6 |
|
|
2002 | 2003 |
| 6 | CC75C - Survey 7 |
|
|
2006 | 2007 |
| 7 | CC75C - Survey 8 |
|
|
2008 | 2009 |
| 8 | CC75C - Survey 9 |
|
|
2010 | 2011 |
| 9 | CC75C - Survey 10 |
|
|
2013 | 2013 |
Participating Studies
| Acronym | Name | Study design | Countries |
|---|
Harmonization Initiatives Included
| Acronym | Name |
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Datasets
| Name | Data Collection Events | Variables |
|---|
Areas of Information Collected
- Socio-demographic and economic characteristics
- Death
- Lifestyle and behaviours
- Physical measures and assessments
- Birth, pregnancy and reproductive health history
- Laboratory measures
- Perception of health, quality of life, development and functional limitations
- Cognition, personality and psychological measures and assessments
- Diseases
- Life events, life plans, beliefs and values
- Symptoms and signs
- Preschool, school and work life
- Medication and supplements
- Social environment and relationships
- Non-pharmacological interventions
- Physical environment
- Health and community care services utilization
- Administrative information
Variables Content Summary
Areas of Information Collected
Areas of Information Collected per per Population and Data Collection Event
Networks
| Acronym | Name | Harmonization Initiatives | Individual Studies |
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