Table 1 Characteristics of the study groups
| Mesothelioma patients (N) | Asbestos-exposed controls (N) | |
|---|---|---|
| Gender | ||
| Male | 22 | 44 |
| Age (years) | ||
| Median | 71.5 | 72.5 |
| Range | 40–84 | 49–83 |
| Smoking status | ||
| Ever | 9 | 22 |
| Never | 11 | 22 |
| Unknown | 2 | 0 |
| Histological subtype | ||
| Epitheliod | 14 | – |
| Biphasic | 2 | – |
| Sacromatoid | 2 | – |
| Unknown | 4 | – |