Table 1 Demographic characteristics of the study population
From: Respiratory tract mortality in cement workers: a proportionate mortality study
Cement production workers | |
|---|---|
Number of deaths | 632 |
Age at death(mean, range) | 68 (27-102) |
Starting date of employment(range) | 1912-1989 |
Ending date of employment (range) | 1949-1998 |
Blue-collar maintenance workers | |
Number of deaths | 336 |
Age at death(mean, range) | 68.4 (31-110) |
Starting date of employment(range) | 1919-1995 |
Ending date of employment (range) | 1948-1998 |
Office workers | |
Number of deaths | 189 |
Age at death(mean, range) | 72 (32-100) |
Starting date of employment(range) | 1910-1984 |
Ending date of employment (range) | 1945-1998 |