Mesothelioma and calendar year
| Calendar year (years since exposure*) | No. mesotheliomas | Total† | Cohort‡ | Person-years‡ | Mesothelioma rate‡§ | |||
|---|---|---|---|---|---|---|---|---|
| Total† | Cohort‡ | PT | PL | PT | PL | |||
| *Average time from midpoint of production period (1940–44) to midpoint of calendar year range. | ||||||||
| †Total number in 1154 former workers. | ||||||||
| ‡In cohort of 1061 workers with known duration of employment. | ||||||||
| §Rate per 100 000 person-years at risk. | ||||||||
| PT, peritoneal; PL, pleural. | ||||||||
| 1956–60 (16) | 0 | 0 | 0 | 0 | 0 | 0 | 5134 | 0 |
| 1961–65 (21) | 4 | 3 | 2 | 2 | 1 | 2 | 4982 | 60 |
| 1966–70 (26) | 5 | 5 | 1 | 4 | 1 | 4 | 4741 | 105 |
| 1971–75 (31) | 14 | 10 | 4 | 10 | 3 | 7 | 4341 | 230 |
| 1976–80 (36) | 11 | 8 | 3 | 8 | 2 | 6 | 3768 | 212 |
| 1981–85 (41) | 10 | 7 | 3 | 7 | 2 | 5 | 3167 | 221 |
| 1986–90 (46) | 14 | 7 | 2 | 12 | 1 | 6 | 2582 | 271 |
| 1991–95 (51) | 7 | 5 | 3 | 4 | 2 | 3 | 1925 | 260 |
| 1996–00 (56) | 0 | 0 | 0 | 0 | 0 | 0 | 1334 | 0 |
| 2001–03 (60) | 0 | 0 | 0 | 0 | 0 | 0 | 604 | 0 |
| Total | 65 | 45 | 18 | 47 | 12 | 33 | 32578 | 138.1 |