Comparison between the two groups of patients postfollow-up
| Observation (n=29) | Control (n=91) | P value | |
| Diagnosed as ulcerative colitis | 28 | 71 | 0.024 |
| Diagnosed with other diseases | 1 | 20 | |
| Crohn’s disease, n (%) | 0 (0.0) | 5 (5.5) | 0.334 |
| Infectious colitis, n (%) | 1 (3.5) | 10 (11.0) | 0.293 |
| Colonic neoplasia, n (%) | 0 (0.0) | 2 (2.2) | 1.000 |
| Intestinal tuberculosis, n (%) | 0 (0.0) | 3 (3.3) | 1.000 |