Table 2. Risk of pancreatic cancer in relation to selected medical conditions in a population-based case-control study in Minnesota, 1994–1998.
| Condition | No. of cases | No. of controls | Crude OR (95% CI) | Adjusted OR (95% CI)a |
|---|---|---|---|---|
|
Cholecystectomy | ||||
| No | 155 | 604 | 1.00 (Referent) | 1.00 (Referent) |
| Yes |
48 |
72 |
2.60 (1.73–3.89) |
2.11 (1.32–3.35) |
|
Gallstones | ||||
| No | 151 | 597 | 1.00 (Referent) | 1.00 (Referent) |
| Yes |
42 |
78 |
2.13 (1.40–3.21) |
1.97 (1.23–3.12) |
|
Tonsillectomy | ||||
| No | 107 | 301 | 1.00 (Referent) | 1.00 (Referent) |
| Yes | 100 | 374 | 0.75 (0.55–1.03) | 0.67 (0.48–0.94) |
Abbreviations: CI=confidence interval; OR=odds ratio. All bold ORs statitically significant as indicated by their 95% CIs.
a
Adjusted for age, sex, race, smoking status, physical activity, and diabetes.