Smoking history and lung cancer survival in women.

The 12-month survival of 223 women with primary lung cancer was examined according to their smoking status given in the hospital record. A multivariate regression model was used to adjust simultaneously for age, tumor stage at diagnosis, tumor histology, and treatment. With adjustment for all these covariates, the 136 ever-smokers demonstrated a significantly greater probability of dying during the 12 months after diagnosis than the 87 never-smokers (odds ratio = 1.74; P = 0.023).