Histological type | Years of smoking duration | ||
5 years | 10 years | 15 years | |
Squamous cell carcinoma | 1.58 (1.43 to 1.75) | 2.50 (2.04 to 3.06) | 3.95 (2.91 to 5.36) |
Small cell carcinoma | 1.73 (1.54 to 1.94) | 2.98 (2.37 to 3.74) | 5.14 (3.64 to 7.25) |
Adenocarcinoma | 1.35 (1.28 to 1.42) | 1.82 (1.64 to 2.02) | 2.45 (2.10 to 2.87) |
Large cell carcinoma | 1.42 (1.23 to 1.65) | 2.02 (1.51 to 2.72) | 2.88 (1.85 to 4.49) |
*Age and cigarettes smoked per day included in the model.