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Subdivision of the level of division of the internal anal sphincter (below or above 50%) and deterioration in anal continence defined as any extent of impairment of faecal incontinence in the immediate postoperative period
| Deterioration in anal continence | |||
|---|---|---|---|
| No | Yes | ||
| IAS | < 50% | 32 (88.9) | 5 (38.5) |
| ≥ 50% | 4 (11.1) | 8 (61.5) | |
| Total | 36 | 13 | |
Values are expressed as n (% of subgroup deterioration in anal continence)
IAS internal anal sphincter, p = 0.001
