Table 3.

Results of multiple logistic regression of lung cancer risk on sex, age at randomization, family history of lung cancer, cotinine, total NNAL, PheT, and years of cigarette smoking

VariablesOR95% Confidence limits
P
LowerUpper
Sex (men vs. women)1.380.682.790.3701
Age at randomization1.101.021.180.0187
Family history of lung cancer2.570.877.600.0891
Cotinine*0.850.591.230.3947
Total NNAL*1.571.082.280.0182
PheT*1.230.881.720.2274
Years of cigarette smoking1.540.862.750.1454
  • * Represents OR associated with a unit standard deviation increase.

  • Represents OR associated with a 10-year increase in smoking duration.