Table 1

Cohort information and follow-up

Available informationMaleFemale
NumberPer centNumberPer cent
An additional surname20.120.1
Forename initials only72.300.0
An alias available250.726.1
Date of birth not available521.600.0
Alternative date of birth50.100.0
No address120535.91236.4
Overseas address33610.039.1
Died in Vietnam service361.113.0
Died after Vietnam war and before 198830.100.0
Male survivors of Vietnam service332298.8
Men matched by Ministry of Health2531
Men matched with electoral roll252
Men followed up278383.8
Not matched53916.2
 Unconfirmed date of death346.3