Table 2 Characteristics of case and non‐case subjects (138 cases and 2595 non‐cases).
| Cases | Non‐cases | Total | p ‐value | |
|---|---|---|---|---|
| n (%) | n (%) | n (%) | ||
| Male | 132 (95.7) | 2418 (93.2) | 2550 (93.3) | 0.182 |
| Mean (SD) | Mean (SD) | Mean (SD) | ||
| Time since first asbestos exposure (years) | 32.1 (8.6) | 37.6 (7.1) | 37.3 (7.3) | <0.001 |
| Time since last asbestos exposure (years) | 30.5 (8.7) | 36.4 (7.6) | 36.1 (7.8) | <0.001 |
| Mean (95% CI) | Mean (95% CI) | Mean (95% CI) | ||
| Cumulative asbestos exposure (f/ml‐year)* | 9.2 (6.7–12.7) | 5.5 (5.1–5.9) | 5.7(5.3–6.0) | 0.0011 |
| Duration of exposure (days)* | 195 (151–253) | 139(131–147) | 141 (134–149) | 0.0086 |
*Geometric mean.