Table 2 Odds ratiosa and 95% confidence intervals for biliary tract cancer in relation to gallstones, Shanghai, China
From: Gallstones and the risk of biliary tract cancer: a population-based study in China
Controls b | Controls c | Gallbladder cancer | Bile duct cancer | Ampulla of Vater cancer | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gallstones | n | % | n | % | n | % | OR | 95% CI | n | % | OR | 95% CI | n | % | OR | 95% CI |
959 | 100.0 | 902 | 100.0 | 368 | 100.0 | 191 | 100.0 | 68 | 100.0 | |||||||
Total | ||||||||||||||||
No | 735 | 76.6 | 735 | 81.5 | 60 | 16.3 | 1.0 | — | 64 | 33.5 | 1.0 | — | 32 | 47.1 | 1.0 | — |
Yesd | 224 | 23.4 | 167 | 18.5 | 308 | 83.7 | 23.8 | 17.0–33.4 | 127 | 66.5 | 8.0 | 5.6–11.4 | 36 | 53.0 | 4.2 | 2.5–7.0 |
Males | ||||||||||||||||
No | 313 | 83.9 | 313 | 87.7 | 24 | 24.2 | 1.0 | — | 40 | 40.4 | 1.0 | — | 20 | 54.1 | 1.0 | — |
Yesd | 60 | 16.1 | 44 | 12.3 | 75 | 75.8 | 23.7 | 13.3–42.2 | 59 | 59.6 | 8.2 | 4.9–13.6 | 17 | 46.0 | 4.6 | 2.3–9.4 |
Females | ||||||||||||||||
No | 422 | 72.0 | 422 | 77.4 | 36 | 13.4 | 1.0 | — | 24 | 26.1 | 1.0 | — | 12 | 38.7 | 1.0 | — |
Yesd | 164 | 28.0 | 123 | 22.6 | 233 | 86.6 | 24.6 | 16.1–37.7 | 68 | 73.9 | 7.7 | 4.6–12.9 | 19 | 61.3 | 3.6 | 1.7–7.6 |
