Variables associated with a mild-to-moderate Crohn's disease (CD) 15-year course selected by logistic regression
| Univariate analysis | Multivariate analysis | |||
| p Value | OR (CI 95%) | p Value | OR (CI 95%) | |
| Age | <0.0001 | 1.03 (1.02 to 1.04) | 0.041 | 1.01 (1.00 to 1.03) |
| High educational level | 0.005 | 1.60 (1.15 to 2.23) | 0.026 | 1.48 (1.05 to 2.09) |
| Ever smoking | 0.001 | 0.58 (0.42 to 0.81) | 0.022 | 0.67 (0.48 to 0.94) |
| Disease duration | <0.0001 | 1.06 (1.04 to 1.09) | <0.001 | 1.05 (1.02 to 1.08) |
| Rectal involvement | 0.006 | 0.62 (0.45 to 0.87) | 0.011 | 0.64 (0.45 to 0.90) |
| Prior intestinal stricture | <0.001 | 2.09 (1.39 to 3.14) | NS | |
| Prior intestinal perforation | 0.002 | 1.86 (1.26 to 2.72) | NS | |
| Prior intestinal resection | <0.0001 | 2.20 (1.59 to 3.06) | NS | |
NS, not significant.