Predictors of flare up according to multivariate Cox analysis
| Adjusted hazard ratio | 95% CI | p Value | |
|---|---|---|---|
| Recently active disease | 2.17 | 1.47 to 3.22 | 0.0001 |
| CDAI >150 | 1.94 | 1.30 to 2.90 | 0.0012 |
| Anoperineal lesions | 1.92 | 1.32 to 2.79 | 0.0006 |
| Current smoking | 1.54 | 1.09 to 2.18 | 0.0152 |
CDAI, Crohn’s disease activity index; CI, confidence interval.