Abstract
BackgroundRectal cancer surgery risks causing bowel dysfunction, which has an important impact on health-related quality of life. The validity of generic tools used to measure health-related quality of life after bowel dysfunction is unclear. This study aimed to determine the content validity of health-related quality-of-life measurement tools in rectal cancer. MethodsThis was a qualitative single-center study in which adult patients who underwent rectal cancer surgery with sphincter preservation from July 2017 to October 2020 were recruited. Patients were excluded if they developed local metastasis, required a permanent stoma, or had surgery <1 year since recruitment. Telephone-based semi-structured interviews were conducted. Bowel dysfunction was measured using the Low Anterior Resection Syndrome score. Content analysis was achieved using the International Classification of Functioning framework. ResultsRecurrent bowel dysfunction-related concepts included “Mental functions,” “Defecation functions,” “Emotional functions,” “Recreation and leisure,” “Intimate relationships,” and “Remunerative employment.” A mean of 7.5 recurrent bowel dysfunction-related concepts were identified within the health-related quality of life instruments analyzed. The European Organization for Research and Treatment of Cancer Quality-of-Life Questionnaire-C30 (n = 11) and the 36-Item Short Form Health Survey (n = 9) covered the greatest number of recurrent bowel dysfunction-related concepts. Concepts such as “Mental functions,” “Urination functions,” “Sexual functions,” “Driving,” and “Mobility” were not covered by any instrument. ConclusionThe content of traditional health-related quality-of-life instruments is missing important areas that represent the impact of bowel dysfunction after rectal cancer surgery on health-related quality of life. These findings could help improve patient-centered care in rectal cancer surgery.
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