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Surgical indications n (%)
| Variable | Value |
| Medical intractability | 270 (65.1) |
| Dysplasia or malignancy | 52 (12.5) |
| Bleeding | 31 (7.5) |
| Perforation | 19 (4.6) |
| Toxic megacolon | 18 (4.3) |
| Obstruction | 9 (2.2) |
| Fistula | 3 (0.7) |
| Others | 13 (3.1) |
| Total | 415 (100) |
