Table 2.
Pouch outcomes and endoscopic phenotypes
| Characteristic | N1 | |
|---|---|---|
| Pouch outcomes | ||
| Chronic pouchitis | 390 | 125 (32%) |
| Acute pouchitis | 377 | 115 (31%) |
| Diverting loop ileostomy | 389 | 19 (4.9%) |
| Pouch excision | 387 | 3 (0.8%) |
| Pouch failure | 389 | 19 (4.9%) |
| Phenotypes at the initial postoperative scope | ||
| Normal | 392 | 80 (20%) |
| Afferent limb involvement | 280 | 57 (20%) |
| Inlet involvement | 325 | 112 (34%) |
| Diffuse inflammation of the pouch body | 390 | 63 (16%) |
| Focal inflammation of the pouch body | 390 | 230 (59%) |
| Cuffitis | 250 | 125 (50%) |
| Pouch-related fistula | 392 | 4 (1.0%) |
| Number of inflammatory phenotypes at the first scope | 392 | |
| 0 | 80 (20%) | |
| 1 | 122 (31%) | |
| 2–3 | 168 (43%) | |
| 4–5 | 22 (5.6%) | |
| Phenotypes at 3 years after ileostomy takedown | ||
| Normal (3yrs) | 258 | 55 (21%) |
| Afferent limb involvement (3yrs) | 174 | 38 (22%) |
| Inlet involvement (3yrs) | 204 | 70 (34%) |
| Diffuse inflammation of the pouch body (3yrs) | 258 | 49 (19%) |
| Focal inflammation of the pouch body (3yrs) | 258 | 143 (55%) |
| Cuffitis (3yrs) | 177 | 96 (54%) |
| Pouch-related fistula (3yrs) | 256 | 7 (2.7%) |
| Number of inflammatory phenotypes at 3yrs | 258 | |
| 0 | 55 (21%) | |
| 1 | 73 (28%) | |
| 2–3 | 109 (42%) | |
| 4–5 | 21 (8.1%) | |
| Phenotypes at 10 years after ileostomy takedown | ||
| Normal (10yrs) | 99 | 12 (12%) |
| Afferent limb involvement (10yrs) | 70 | 18 (26%) |
| Inlet involvement (10yrs) | 75 | 37 (49%) |
| Diffuse inflammation of the pouch body (10yrs) | 99 | 11 (11%) |
| Focal inflammation of the pouch body (10yrs) | 99 | 75 (76%) |
| Cuffitis (10yrs) | 83 | 48 (58%) |
| Pouch-related fistula (10yrs) | 99 | 6 (6.1%) |
| Number of inflammatory phenotypes at 10yrs | 99 | |
| 0 | 12 (12%) | |
| 1 | 16 (16%) | |
| 2–3 | 61 (62%) | |
| 4–5 | 10 (10%) | |
| Overall phenotypes determined by all scopes | ||
| Normal (Overall) | 392 | 57 (15%) |
| Afferent limb involvement (Overall) | 336 | 88 (26%) |
| Inlet involvement (Overall) | 363 | 168 (46%) |
| Diffuse inflammation of the pouch body (Overall) | 390 | 106 (27%) |
| Focal inflammation of the pouch body (Overall) | 390 | 216 (55%) |
| Cuffitis (Overall) | 265 | 155 (58%) |
| Pouch-related fistula (Overall) | 392 | 19 (4.8%) |
| Number of overall inflammatory phenotypes | 392 | |
| 0 | 57 (15%) | |
| 1 | 95 (24%) | |
| 2–3 | 188 (48%) | |
| 4–5 | 52 (13%) |
1n (%)