Table 3. Mesotheliomas by cumulative exposure.
|
Cumulative occupational exposure (f per ml years)a
|
||||
|---|---|---|---|---|
| Total | <10 | 10–<50 | ⩾50 | |
| Number of men | 6484 | 4120 | 1623 | 736 |
| Number of women | 419 | 397 | 20 | 1 |
| Number of diagnosed mesotheliomas | ||||
| Men | ||||
| Pleural | 268 | 112 | 99 | 55 |
| Peritoneal | 48 | 8 | 8 | 32 |
| Women | ||||
| Pleural | 13 | 9 | 4 | 0 |
| Total | 329 | 129 | 111 | 87 |
| Mesothelioma rateb per 100 000 person-yearsc | ||||
| Pleural+peritoneal | ||||
| Method 1 (adjustedd) | 158 | 93 (92) | 225 (226) | 442 (471) |
| Method 2 (adjusted) | 238 | 146 (144) | 324 (327) | 553 (581) |
| Pleural | ||||
| Method 1 (adjusted) | 135 | 87 (86) | 208 (209) | 280 (297) |
| Method 2 (adjusted) | 203 | 137 (136) | 300 (303) | 349 (367) |
| Peritoneal | ||||
| Method 1 (adjusted) | 23 | 6 (6) | 17 (17) | 163 (176) |
| Method 2 (adjusted) | 35 | 9 (9) | 24 (24) | 203 (216) |
| Pleural mesotheliomas within 25 years of first exposure (% of total) | 42 (15%) | 13 (11%) | 18 (17%) | 10 (18%) |
a
Cumulative occupational exposure was unknown for six subjects including two with mesothelioma.
b
Mesothelioma rates calculated excluding the first 10 years of follow-up.
c
Three mesotheliomas occurring after the age of 85 years were excluded from this analysis.
d
Standardised for length of follow-up using the indirect method.