Baseline characteristics of the study population (n = 449)
| Number | |
|---|---|
| Data are presented as number (%) or mean (range). | |
| No of men | 224 (49.9%) |
| Age | 56.4 (50–74) |
| Patients aged >60 years | 114 (25.4%) |
| Pack years smoked | 53.4 (10–160) |
| Number of current smokers | 307 (68.4%) |
| Years since stopping smoking | 4.7 (0.3–21) |