Table 1 Asbestos exposure and other risk factors in the study group (n =187)
| Mean | SD | Range | |
|---|---|---|---|
| Age (years) | 65.8 | 5.8 | 46 – 78 |
| Time since first exposure (years) | 40.4 | 7.8 | 26 – 60 |
| Duration of asbestos exposure (years) | 29.5 | 7.7 | 15 – 49 |
| Pack years | 44.7 | 47.9 | 0 – 118 |
