Table 1.
Characteristics of pouch patients and IRA patients and details of endoscopic surveillance.
| Pouch Patients | IRA Patients | p-Value | |
|---|---|---|---|
| n | 22 | 12 | |
| Male, n (%) | 11 (50) | 4 (33.3) | 0.566 |
| Median age at surgery, y (range) | 30.6 (17–52) | 36.7 (19–67) | 0.098 |
| Median polyp count at surgery | |||
| Total | 2245 (600–9838) | 1339 (200–9436) | 0.596 |
| Colon | 1968 (500–17,200) | 1399 (150–9340) | 0.608 |
| Rectum | 95 (5–5282) | 73 (1–607) | 0.197 |
| Gastric polyp, n (%) | 17 (77.2%) | 11 (91.7%) | 0.561 |
| Papillary adenoma, n (%) | 10 (45.4%) | 4 (33.3%) | 0.748 |
| Extra-papillary adenoma, n (%) | 8 (36.3%) | 5 (41.6%) | 0.948 |
| Median follow-up period since surgery, y (range) | 24.3 (3.7–40.2) | 21.7 (1–39.7) | 0.441 |
| Median interval to 1st endoscopy after surgery, y | 8.0 (0.9–21.9) | 0.5 (0.4–1.8) | <0.001 |
| (range) | |||
| Frequencies of adenoma development, n (%) | 20 (90.9) | 11 (91.6) | 0.577 |
| Median duration to 1st detection of adenoma after surgery, y (range) |
11.7 (1.0–30.2) | 1.3 (0.5–6.7) | <0.001 |