Longitudinal Study of Generations
The study objectives were:
- To track life-course trajectories of family intergenerational solidarity and conflict over three decades of adulthood, and across successive generations of family members;
- To identify how intergenerational solidarity and conflict influence the well-being of family members throughout the adult life-course and across successive generations;
- To chart the effects of socio-historical change on families, intergenerational relationships, and individual life-course development during the past three decades;
- To examine women’s roles and relationships in multigenerational families over 30 years of rapid change in the social trajectories of women’s lives.
Overview
- Acronym
- LSOG
- Investigators
-
- Contacts
-
General Design
- Study design
- Cohort
- Start - End Year
- 1971 - 2000
- General Information on Follow Up (profile, frequency)
-
The baseline survey took place in 1971. Follow-up mailed surveys were administered every 3 years between 1984 and 2000.
- Recruitment Target
-
- Families
- Number of Participants
- 2,044
- Supplementary information about number of participants
-
Wave 1: 2044 participants from 345 multigenerational families
Wave 2: 1331 participants
Wave 3: 1483 participants
Wave 4: 1734 participants
Wave 5: 1682 participants
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
|
Marker Paper
Bengtson, V. L. (1975). Generation and family effects in value socialization. American Sociological Review, 40, 358–371.
Timeline
Populations
G1 consisted of the grandparents' generation, aged 60 to 75 years at wave 1 (born 1896-1911).
Selection Criteria
- Minimum age
-
60
- Maximum age
-
75
- Countries
-
- United States of America
- Territory
-
The greater Los Angeles area.
- Other Criteria
-
Members had to have at least one grandchild between 16-26 years of age.
Sources of Recruitment
- Specific Population
-
- Members of an association
- Supplementary Information
-
Drawn randomly from members of a California health maintenance organization (HMO) in the greater Los Angeles area.
Sample Size
- Number of Participants
- 516
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | LSOG - Wave 1 |
|
1971 | 1972 | |
| 1 | LSOG - Wave 2 |
|
1984 | 1985 | |
| 2 | LSOG - Wave 3 |
|
1988 | 1990 | |
| 3 | LSOG - Wave 4 |
|
1991 | 1991 | |
| 4 | LSOG - Wave 5 |
|
1994 | 1994 | |
| 5 | LSOG - Wave 6 |
|
1997 | 1997 | |
| 6 | LSOG - Wave 7 |
|
2000 | 2000 |
G3 consisted of the grandchildrens' generation, aged 16 to 26 years at wave 1 (born 1945-1955).
Selection Criteria
- Minimum age
-
16
- Maximum age
-
26
- Countries
-
- United States of America
- Other Criteria
-
Had to be the grandchild of a G1 participant.
Sources of Recruitment
- Specific Population
-
-
Other specific population :
Grandchildren of G1 cohort.
-
Other specific population :
Sample Size
- Number of Participants
- 837
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | LSOG - Wave 1 |
|
1971 | 1972 | |
| 1 | LSOG - Wave 2 |
|
1984 | 1985 | |
| 2 | LSOG - Wave 3 |
|
1988 | 1990 | |
| 3 | LSOG - Wave 4 |
|
1991 | 1991 | |
| 4 | LSOG - Wave 5 |
|
1994 | 1994 | |
| 5 | LSOG - Wave 6 |
|
1997 | 1997 | |
| 6 | LSOG - Wave 7 |
|
2000 | 2000 |
G2 consisted of the parents' generation, aged 40 to 55 years at wave 1 (born 1916-1931).
Selection Criteria
- Minimum age
-
40
- Maximum age
-
55
- Countries
-
- United States of America
- Other Criteria
-
Had to be the child of a G1 participant.
Sources of Recruitment
- Specific Population
-
-
Other specific population :
Children of G1 cohort.
-
Other specific population :
Sample Size
- Number of Participants
- 701
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | LSOG - Wave 1 |
|
1971 | 1972 | |
| 1 | LSOG - Wave 2 |
|
1984 | 1985 | |
| 2 | LSOG - Wave 3 |
|
1988 | 1990 | |
| 3 | LSOG - Wave 4 |
|
1991 | 1991 | |
| 4 | LSOG - Wave 5 |
|
1994 | 1994 | |
| 5 | LSOG - Wave 6 |
|
1997 | 1997 | |
| 6 | LSOG - Wave 7 |
|
2000 | 2000 |
G4 consisted of the great grandchildrens' generation, added in 1991 to the original three cohorts, and aged 16 to 26 years (born 1965-1975).
Selection Criteria
- Minimum age
-
16
- Maximum age
-
26
- Countries
-
- United States of America
- Other Criteria
-
Had to be the great grandchild of a G1 participant.
Sources of Recruitment
- Specific Population
-
-
Other specific population :
Great grandchildren of G1 cohort.
-
Other specific population :
Sample Size
- Number of Participants
- 198
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | LSOG - Wave 4 |
|
1991 | 1991 | |
| 1 | LSOG - Wave 5 |
|
1994 | 1994 | |
| 2 | LSOG - Wave 6 |
|
1997 | 1997 | |
| 3 | LSOG - Wave 7 |
|
2000 | 2000 |
Participating Studies
| Acronym | Name | Study design | Countries |
|---|
Harmonization Initiatives Included
| Acronym | Name |
|---|
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 |
|---|