Abstract
The occurrence of smoking among 609 women with preinvasive cervical uterine cancer has been examined. Of these women, 66.3% were smokers. For 6090 controls the figure was 41.9%. The difference is statistically significant (p>0.001). In all the age groups the proportion of smokers was greater among the women with cancer. These also started smoking at an earlier age, and the number of cigarettes smoked daily was greater than for the controls.