Case-control study on pleural mesothelioma in the Casale Monferrato area
| Fibre/mL-years | Cases | Controls | OR (95% CI) |
|---|---|---|---|
| N (%) | N (%) | ||
| All subjects | |||
| background level (<0.1) | 8 (4.0) | 106 (30.5) | 1 (ref) |
| ≥0.1–<1 | 26 (13.0) | 108 (31.0) | 4.4 (1.7 to 11.3) |
| ≥1–<10 | 113 (56.5) | 115 (33.0) | 17.5 (7.3 to 41.8) |
| ≥10 (mean of fibres in this class: 201; range of fibres in this class: 10–4128) | 53 (26.5) | 19 (5.5) | 62.1 (22.2 to 173.2) |
| Total | 200 (100.0) | 348 (100.0) | |
| Non-occupationally exposed only | |||
| Background level (<0.1) | 7 (8.3) | 85 (42.3) | 1 (ref) |
| ≥0.1–<1 | 15 (17.9) | 58 (28.9) | 3.8 (1.3 to 11.1) |
| ≥1–<10 | 57 (67.9) | 56 (27.9) | 14.8 (5.7 to 38.6) |
| ≥10 (mean of fibres in this class: 16; range of fibres in this class: 10–24.2) | 5 (6.0) | 2 (1.0) | 23.3 (2.9 to 186.9) |
| Total | 84 (100.0) | 201 (100.0) | |
Risk of mesothelioma in relation to cumulative exposure index
The models are adjusted for age, sex, type of interview.