Table 3. Postoperative data.
| IRA | IAA | P value | |
| n = 197 | n = 92 | ||
| Mean length of stay, (mean (SD)) | 8.7 (4.8) | 7.9 (2.8) | 0.14 |
| Postoperative morbidity, n (%) | 29 (14.7) | 15 (16.3) | 0.72 |
| Long-term morbidity, n (%) | 48 (24.4) | 37 (40.2) | 0.006 |
| Poor nutrition | 8 (4.1) | 3 (3.3) | 0.74 |
| Short bowel length | 3 (1.5) | 4 (4.3) | 0.21 |
| Prolapse | 0 | 1 (1.1) | 0.31 |
| Deep abcess | 1 (0.5) | 0 | 1 |
| Ascitis | 1 (0.5) | 0 | 1 |
| Chronic leakage | 0 | 6 (6.5) | 0.001 |
| Bowel perforation related to desmoid tumor | 0 | 3 (3.3) | 0.03 |
| Peritonitis | 1 (0.5) | 1 (1.1) | 0.53 |
| Bleeding | 2 (1.0) | 3 (3.3) | 0.17 |
| Occlusion | 28 (14.2) | 17 (18.5) | 0.35 |
| Anatomotic stenosis | 9 (4.6) | 12 (13.0) | 0.01 |
| Anal fissure | 1 (0.5) | 0 | 1 |
| Pouchitis | 0 | 1 (1.1) | 0.49 |
| Event rate | 10 (5.1) | 5 (5.4) | 0.89 |
| Secondary rectal/pouch cancer, n (%) | 12 (6.1) | 1 (1.1) | 0.06 |
| Surgical treatment | 10 (5.1) | 0 | |
| IAA | 5 (2.5) | 0 | |
| APR | 5 (2.5) | 0 | |
| Endoscopic treatment mucosectomy | 2 (1.0) | 1 (1.1) | |
| Pathology of secondary cancer, n (%) | |||
| Intramucosal | 2 (1.0) | 1 (1.1) | 0.71 |
| T1 | 1 (0.5) | 0 | |
| T2 | 2 (1.0) | 0 | |
| T3 | 2 (1.0) | 0 | |
| T4 | 0 | 0 | |
| N1 | 1 (0.5) | 0 | |
| M | 1 (0.5) | 0 | |
| Carcinomatosis | 1 (0.5) | 0 | 0.20 |
| Pelvic recurrence | 0 | 1 (1.1) | 0.21 |
| Quality of life, n (%) | |||
| Number of stools per day (mean (SD)) | 4.4 (2.5) | 5.5 (2.6) | 0.001 |
| Incontinence | 14 (7.1) | 16 (17.4) | 0.03 |
| Nocturnal leakage | 13 (6.6) | 20 (23.5) | 0.0001 |
IAA, ileoanal anastomosis; APR, abdominoperineal resection.