Responding Population

All eligible study members were contacted via a postal questionnaire. Subsequently 238 study members were approached for a sub-study on the effect of breast feeding1)

Provided information 3,340
Cumulative total of deaths 306
Cumulative permanent refusals158
Temporarily living abroad 77
Cumulative emigrated 528
Failure to contact 953

Data collection

The postal questionnaire was sent to all cohort members to ask about family, health, employment, smoking, and sports participation and fitness.

Two physicians used a dietary and health questionnaire at home visits to 172 of 238 cohort members invited to take part in a study of the effect of breast feeding, and who had been selected on that basis.

Training for data collection

Instructions are given at the head of each form.


All Study Members

  • Marital status and children
  • Information on parents
  • Accidents and medical appointments
  • Contraception (women only)
  • Employment history
  • Smoking
  • Heights and weights
  • Rheumatism and back pain
  • Headaches
  • Sports and fitness


See Marmot MG et al. 1980 Journal of Epidemiology & Community Health, vol 34, pp 164-167 for further information
  • questionnaires/1977.txt
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