Study team
|
MRC Unit for Lifelong Health and Ageing
|
National Birthday Trust Fund/Centre for Longitudinal Studies
|
UK Longitudinal Studies Centre
|
Understanding Society
|
Funder
|
MRC
|
National Birthday Trust Fund and ESRC
|
ESRC
|
ESRC, Department for Health, and others
|
Start year of the study
|
1946
|
1958
|
1991
|
2009/2010
|
Scope
|
GB
|
GB
|
GB until 2001, then UK
|
UK
|
Sample description
|
Born in a specific week, mainly British White
|
Born in a specific week, mainly British White
|
Cross-section of resident population in 1991, additional regional boosts
|
Cross-section of resident population in 2009/10, additional ethnic minority boost
|
Mode of interview
|
Postal survey with follow-up home/clinic visit
|
Face to face interview
|
Face to face interview
|
Face to face interview
|
Follow-up sequence
|
At specific points in time
|
At specific points in time
|
Annually
|
Annually
|
Health-related content in survey
|
Most
|
Some
|
Some
|
A little1
|
Number of sweeps before
| | | | |
• biomarkers collected
|
None
|
None
|
182
|
1
|
• consent asked
|
22
|
7
|
182
|
None
|
Study advance letter includes references to health record linkage
|
No3
|
Yes
|
Yes
|
No
|
Consent asked by
|
No-one if postal survey only, else by research nurse
|
Trained interviewer
|
Trained interviewer
|
Trained interviewer
|
Information leaflet about linkage
|
No3
|
Yes, provided in the interview
|
Yes, sent in advance
|
Yes, provided in the interview
|
Specific types of health data mentioned
|
GP records; Hospital records
|
Hospital records; GP records; prescriptions
|
NHS Central Register data; Hospital records; prescriptions; GP records
|
NHS Central Register data; Hospital records
|