Table 6.
Multivariate logistic regression analysis of factors associated with surgery [odds ratios (OR) and 95% CI].
| Predictor | IBD-related Surgeries** | Cholecystectomy | Appendectomy |
|---|---|---|---|
| Total N* | 1849 | 1849 | 1849 |
| Events | 805 | 130 | 248 |
| Behavior status B1 |
ref | ||
| B2 | 3.80 (2.92-4.93) | 1.50 (0.97-2.32) | 1.81 (1.27-2.56) |
| B3 | 7.71 (5.69-10.45) | 1.27 (0.77-2.1) | 3.12 (2.21-4.43) |
| Location L3 |
ref | ||
| L1 | 1.00 (0.78-1.28) | 1.64 (1.09-2.47) | 1.15 (0.85-1.55) |
| L2 | 0.24 (0.16-0.35) | 1.36 (0.78-2.35) | 0.84 (0.54-1.30) |
| Age: 18-39 |
ref | ||
| 40-59 | 1.08 (0.82-1.41) | 2.52 (1.48-4.29) | 1.95 (1.35-2.81) |
| 60+ | 1.19 (0.84-1.68) | 5.35 (3.07-9.33) | 2.34 (1.53-3.58) |
| Duration of IBD (yrs) <10 |
ref | ||
| 10-24 | 2.95 (2.28-3.81) | 1.20 (0.77-1.89) | 1.13 (0.79-1.60) |
| 25+ | 9.28 (6.47-13.3) | 1.17 (0.7-1.97) | 1.61 (1.08-2.41) |
*Only 1849 of 2112 participants reported outcomes for these surgeries.
**The data reflect 1 or more surgeries vs none (ie, a participant could have several IBD-related surgeries but is only counted once).