1969 (aged 23 years)
Responding Population
All eligible study members were contacted.
| Provided information | 3,026 |
| Cumulative total of deaths | 281 |
| Cumulative permanent refusals | 100 |
| Temporarily living abroad | 66 |
| Cumulative emigrated | 397 |
| Failure to contact | 1,492 |
Data collection
A postal questionnaire was sent to all cohort members
Training for data collection
Instructions are given at the head of each form.
Contents
Study Member
- Marital status and children
- Accidents and medical appointments
- Housing
- Employment history and earnings
Questionnaires
Form H4 Postal questionnaire