Cases (n=284) | p | Controls (n=199) | |
---|---|---|---|
Life time cigarette (×103) (mean±SD) | 122±140 | 0.007 | 146±133 |
Square root of life time cigarette consumption | 265.8±227.8 | 0.008* | 322.8±206.2 |
Duration of smoking history (years) | 16.9±15.3 | 0.06* | 19.6±13.8 |
Average cigarettes/day while smoking | 12.9±12.2 | 0.006* | 16.1±11.2 |