Smoking habits of cases and controls
| Current cigarette smokers | Ex-cigarette smokers | Non-regular cigarette smokers | Other tobacco smokers | Never-smokers | Total | |
|---|---|---|---|---|---|---|
| Women | ||||||
| Cases | 146 | 128 | 22 | 29 | 164 | 489 |
| Controls | 151 | 150 | 36 | 41 | 224 | 602 |
| Men | ||||||
| Cases | 46 | 66 | 3 | 32 | 43 | 190 |
| Controls | 53 | 81 | 14 | 30 | 67 | 245 |