==== 1969 (aged 23 years) ====
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=== 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|                        | | | | | |
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=== Data collection ===

A postal questionnaire was sent to all cohort members
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=== Training for data collection ===

Instructions are given at the head of each form.
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=== Contents ===

===Study Member===

  *     Marital status and children
  *     Accidents and medical appointments
  *     Housing
  *     Employment history and earnings

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=== Questionnaires ===

  * {{ questionnaires : 1969-H4.pdf|Form H4 }} Postal questionanire

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