Accuracy of patient‐reported bowel symptoms for fecal incontinence: Historical recall versus prospective evaluation

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Abstract
Introduction: Fecal incontinence (FI) is characterized by both irregular and unpredictable bowel symptoms. An accurate history of symptoms is important for diagnosis and guiding management. Whether a patient's history of bowel symptoms is reliable or if there is recall bias is unknown.Aim: To evaluate the accuracy of FI symptoms based on patient's recall compared with a prospective stool diary.Methods: FI (Rome IV) patients completed a bowel questionnaire that included leakage episodes and stool consistency. Subsequently they completed a one‐week FI stool diary. Agreement and correlation between historical recall and stool diary were compared.Results: One hundred patients participated. On average they reported 12 bowel movements (BMs) and five FI episodes per week. Fifty‐two percent had completed under‐graduation, 33% high school and 15% postgraduation. Using recall, 23% of patients accurately reported the number of FI episodes, whereas 41% underestimated and 36% overestimated its prevalence compared to the FI diary. Similarly, the concordance for the number of BMs was 30%, urgency was 54%, amount of stool leakage was 16%, and stool consistency was 12.5%. The concordance for nocturnal FI events, use of pads and lack of stool awareness were 63%, 75%, and 66.6% respectively.Conclusion: There is poor concordance for key bowel symptoms including the number of FI episodes as reported by FI patients, suggesting significant recall bias. Thus, historical recall of chronic FI symptoms may be less accurate. A prospective stool diary could provide more accurate information for the evaluation of FI patients.

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