Subjects classified as exposed* | 813 | | 699 | |
By vital status (at 31 Dec 2000) | | | | |
Alive | 511 | 62.9 | 549 | 78.5 |
Dead | 122 | 15.0 | 91 | 12.9 |
Lost to follow up, including emigrated | 180 | 22.1 | 59 | 8.5 |
By sex | | | | |
Men | 713 | 87.7 | 697 | 99.7 |
Women | 100 | 12.3 | 2 | 0.3 |
By duration of recorded employment† | | | | |
<½year | 247 | 30.4 | 4 | 0.6 |
½–1 year | 100 | 12.3 | 2 | 0.3 |
1–2 years | 131 | 16.1 | 5 | 0.7 |
2–6 years | 174 | 21.4 | 92 | 13.2 |
6–10 years | 65 | 8.0 | 107 | 15.3 |
10–20 years | 73 | 9.0 | 265 | 37.9 |
>20 years | 23 | 2.8 | 224 | 32.0 |
Total person-years | 17613 | | 20044 | |
Total possible person-years‡ | 20185 | | 20592 | |
Person-years by time since first employment† | | | | |
0–10 years (person-years) | 7136 | 40.5 | 4170 | 20.8 |
10–20 years (person-years) | 6289 | 35.7 | 6032 | 30.1 |
20–30 years (person-years) | 3533 | 20.1 | 5691 | 28.4 |
>30 years (person-years) | 655 | 3.7 | 4151 | 20.7 |
| | | | |
Subjects classified as unexposed§ | 212 | | 4 | |
Alive | 118 | | 3 | |
Dead | 42 | | 0 | |
Lost to follow up, including emigrated | 52 | | 1 | |