Accepted for/Published in: Interactive Journal of Medical Research
Date Submitted: May 8, 2025
Date Accepted: Sep 30, 2025
Compliance with bowel preparation and its influencing factors in patients undergoing colonoscopy: a cross-sectional study
ABSTRACT
Background:
Bowel preparation compliance is an important intervenable factor that affects bowel preparation quality, and improving compliance is an important way to optimize the quality of bowel preparation. Despite its importance, the compliance rate and its influencing factors have not been thoroughly evaluated.
Objective:
This study aimed to investigate the overall compliance with bowel preparation instructions in patients undergoing colonoscopy in this study.
Methods:
From September 2024 to March 2025, a cross-sectional questionnaire-based study was conducted at West China Hospital of Sichuan University, involving 740 participants selected via convenience sampling. Univariate and multivariate logistic regression analyses were employed to assess factors influencing compliance.
Results:
In this study, 42.0% of patients had adequate compliance with bowel preparation. In the univariate analysis, hypertension history, knowledge of bowel preparation, purgative type, satisfaction with the taste and flavor of the purgative, anxiety during bowel preparation, and discomfort during bowel preparation all had statistically significant effects. Multivariate analysis identified age (OR = 2.27, 95% CI 1.16, 4.49), educational level (OR = 3.29, 95% CI 1.41, 8.33), knowledge of bowel preparation (OR = 1.59, 95% CI 1.14, 2.24), satisfaction with the taste and flavor of the purgative (OR = 2.11, 95% CI 1.48, 3.02) and physical discomfort during bowel preparation (OR = 0.45, 95% CI 0.31,0. 64) as independent influencing factors of compliance.
Conclusions:
Personalizing bowel preparation instructions according to patients’ age and education level and selecting a purgative type that the patient is satisfied with when available, are feasible ways to improve compliance with bowel preparation. Clinical Trial: ChiCTR2400089364
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