ArticleCureus2025
Comparison of Bowel Preparation Quality for Colonoscopy Between Inpatients and Outpatients: A Single-Center Prospective Observational Study in Lebanon.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
7 authors.
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Abstract
backgroundInadequate bowel cleansing is a common challenge among patients undergoing colonoscopy. However, no prior study has specifically investigated whether admission status itself contributes to suboptimal preparation in the Lebanese population.
objectivesTo compare the adequacy of bowel preparation between inpatients and outpatients and to identify independent predictors of poor bowel cleansing.
methodsThis prospective, single-center observational study was conducted at a tertiary care hospital and included colonoscopies performed on both inpatients and outpatients. A total of 217 procedures were analyzed (109 outpatients and 108 inpatients). Bowel preparation quality was evaluated using the Boston Bowel Preparation Scale (BBPS). Univariate and multivariate logistic regression analyses were used to identify factors associated with inadequate bowel preparation.
resultsNo statistically significant difference in bowel preparation adequacy was found between inpatients and outpatients. In the overall cohort, two independent predictors of bowel preparation quality were identified. Smoking was significantly associated with inadequate cleansing, with smokers having 62.4% lower odds of achieving good preparation compared to non-smokers (OR = 0.376; p = 0.002). Conversely, the use of a split-dose regimen significantly improved bowel cleansing, increasing the odds of adequate preparation by nearly five times compared to single-dose regimens (OR = 4.96; p = 0.001).
conclusionsInpatient status was not associated with inferior bowel preparation compared to outpatient status. Smoking and the type of bowel preparation regimen (split- vs. single-dose) were the most significant predictors of bowel cleansing quality.
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