TABLE 4.
Duration of Passive Smoking Exposure and Risk of Pancreatic Cancer
| Total population |
Cigarette smokers |
Noncigarette smokers |
||||
|---|---|---|---|---|---|---|
| Exposure status | Cases/Controls n/n | AOR 95% CI | Cases/Controls n/n | AOR 95% CI | Cases/Controls n/n | AOR 95% CI |
| Never exposed | 114/163 | 1 | 39/52 | 1 | 75/111 | 1 |
| Childhood, y | ||||||
| 1-5 | 17/20 | 1.1 (0.5-2.4) | 11/6 | 2.5 (0.8-7.8) | 6/14 | 0.6 (0.2-1.7) |
| 6-10 | 18/34 | 0.8 (0.4-1.6) | 11/11 | 1.5 (0.5-4) | 7/23 | 0.6 (0.2-1.5) |
| >10 | 416/431 | 1.3 (0.9-1.7) | 273/234 | 1.7 (1.02-2.7) | 143/197 | 1.1 (0.7-1.6) |
| Adulthood, y | ||||||
| 1-10 | 97/84 | 1.3 (0.9-1.9) | 36/48 | 2.1 (1.1-4.1) | 61/36 | 1 (0.5-1.7) |
| 11-20 | 108/88 | 1.01 (0.7-1.5) | 64/59 | 1.2 (0.7-2.1) | 44/29 | 1.1 (0.6-2.01) |
| >20 | 261/315 | 1.4 (1.01-1.9) | 167/226 | 1.8 (1.1-2.9) | 94/89 | 1.2 (0.8-1.9) |
| Lifetime. y | ||||||
| 1-10 | 32/55 | 0.9 (0.5-1.5) | 13/16 | 1.3 (0.4-3.2) | 19/39 | 0.8 (0.4-1.6) |
| 11-20 | 144/175 | 1.3 (0.9-1.8) | 78/73 | 1.6 (0.9-2.8) | 66/102 | 1.1 (0.7-1.7) |
| >20 | 417/378 | 1.4 (1.01-1.9) | 293/234 | 1.7 (1.1-2.7) | 124/144 | 1.2 (0.8-1.8) |