Table 1.

Results of the vital status inquiry

Status at the end of follow-upn%Total
Total subjects entering the cohort4,552100.0
Alive1,49232.8
Deceased3,03766.7
    With death certificate2,72689.8 (based on total number of deaths)
    Cause of death undefined or death certificate not found31110.2 (based on total number of deaths)
Lost230.5