• Shanshan Chen, Tingting Zhang, Saie Zhu, and Yi Zhou.
• Nursing Department, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, PR China.
• Curr Med Res Opin. 2024 Sep 1; 40 (9): 154515541545-1554.

ObjectiveQuality of bowel preparation and patient compliance are among the most important indicators to assess the quality of colonoscopy. To investigate the independent factors associated with the quality of bowel preparation in subjects undergoing colonoscopy and its impact on compliance.MethodsA total of 329 patient records were collected and were divided into an adequate bowel preparation group (272 cases) and an inadequate bowel preparation group (57 cases), or a compliant group (260 cases) and a non-compliant group (69 cases), based on bowel preparation quality or compliance. The quality of bowel preparation is evaluated using the Boston Bowel Preparation Scale. The comfort level of subjects during bowel preparation is assessed using the Kolcaba General Comfort Questionnaire (GCQ). Subjects' compliance was assessed according to a self-developed compliance questionnaire. Prediction analyses were conducted to identify factors associated with the quality of bowel preparation and compliance.ResultsAge, bowel preparation duration, history of bowel inadequacy, and laxative dosage showed statistical differences between the adequate and inadequate bowel preparation groups (p < 0.05). Age, bowel preparation duration, and laxative dosage were independent influencing factors of bowel preparation quality. Correlation analysis showed that GCQ scores were significantly negatively correlated with age, bowel preparation duration, laxative dose, defecation frequency, and colonoscopy duration (r < 0, p < 0.05), and positively correlated with sleep duration (r > 0, p < 0.05). In addition, age, gender, bowel preparation duration, and laxative dosage showed statistical differences between the compliant and non-compliant groups (p < 0.05). Logistic regression analysis revealed that age, bowel preparation duration, and laxative dosage were independent influencing factors of bowel preparation compliance. Age and bowel preparation duration were independent influencing factors for bowel preparation adequacy and compliance.ConclusionsAge, bowel preparation duration, and laxative dosage are independent influencing factors for bowel preparation adequacy and compliance among patients undergoing colonoscopy at the First Affiliated Hospital, School of Medicine, Zhejiang University. It is recommended that a one-day low-residue diet combined with a 2000 mL laxative dosage be used as the bowel preparation protocol for the general colonoscopy population.

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