Relation of bowel habits to fecal incontinence in women
Abstract
BACKGROUND: Though most women with fecal incontinence (FI) have anorectal dysfunctions, a majority have intermittent symptoms. Variations in bowel habits and daily routine may partly explain this.
AIM: To compare bowel habits and daily routine between controls and FI, and between continent and incontinent stools among women with FI.
METHOD: Using a mailed questionnaire, we identified 507 women with FI among 5,300 women in Olmsted County, MN. Bowel habits were compared among 127 randomly selected controls and 154 women with self-reported FI, who did ("active" FI, N = 106) or did not ("inactive" FI, N = 48) have an incontinent episode during a 2-wk bowel diary period.
RESULTS: Independent risk factors for FI were: rectal urgency (odds ratio [OR] for inactive FI vs controls 5.6, 95% confidence interval [CI] 2.3-13.3; and OR for active FI vs inactive FI 2.0, 95% CI 0.9-4.3) and a sense of incomplete evacuation (OR for inactive FI vs controls 3.5, 95% CI 1.4-8.8; and OR for active FI vs inactive FI 2.2, 95% CI 1.1-4.9). Similar results were found for stool frequency and form. Among incontinent women, incontinent stools (versus continent stools) were less formed, more likely to occur at work, and to be preceded by rectal urgency.
CONCLUSIONS: Bowel patterns, rectal urgency, and daily routine influence the occurrence of FI. Stool characteristics explained 46% of the likelihood for incontinence episodes, emphasizing that anorectal sensorimotor dysfunctions must also contribute to FI…
How strong is the evidence?
Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 5,300 participants or records.
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