Subjects by vital status | | |
Alive at end of follow up | 1182 | 69% |
Deceased with known cause | 515 | 30% |
Deceased with unknown cause | 15 | 1% |
Lost to follow up | 10 | 1% |
Subjects by cause of leaving employment | | |
Active at end of follow up | 408 | 24% |
Died while active | 109 | 6% |
Retired | 755 | 44% |
Left for medical reasons | 269 | 16% |
Left for other reasons | 181 | 11% |
Total number of subjects | 1722 | 100% |
Mean duration of follow up in years | 21.9 | |
Number of person-years by age | | |
<40 years | 9875 | 26% |
40–49 years | 10519 | 28% |
50–59 years | 9573 | 25% |
60–69 years | 5868 | 16% |
>70 years | 1954 | 5% |
Total number of person-years | 37788 | 100% |