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Characterization of the studied non-small cell lung cancer patients (n = 71) regarding their tobacco addiction and consumption (number of cigarettes smoked per day and pack years)
| Tobacco addiction and consumption | n (%) |
|---|---|
| Smoking period | |
| Smokers | 66 (93) |
| < 40 years | 37 (52) |
| ≥ 40 years | 29 (41) |
| Non-smokers | 5 (7) |
| Number of cigarettes smoked per day | |
| 10–15 | 6 (8) |
| 20 (1 pack) | 43 (61) |
| 30–40 (1.5–2 packs) | 17 (24) |
| PYs | |
| < 40 | 30 (42) |
| ≥ 40 | 36 (51) |
PYs pack years
