ABSTRACT Objective:To find out the influencing factors of inadequate intestinal preparation and to integrate, to design and optimize the guidance of intestinal preparation, and to improve the quality of intestinal preparation by individualized administration of polyethylene glycol (PEG) before the examination of colonoscopy patients through pharmacist intervention. Methods: Single center, prospective observational study method was used. A questionnaire was administered to the patients who underwent colonoscopy in the out patient department between February 2017 and May 2017. Bowel preparation was assessed using Boston bowel preparation scale (BBPS) score. Univariate and multivariate Logistic regression analysis were performed for the influencing factors for the inadequate preparations. Results: A total of 197 patients participated in the study. The proportion of adequate intestinal preparations was 61.4%. The results of univariate analysis showed that the age, hypertension, drugs, character of stool before colonoscopy, high fiber diet during the 24h period immediately preceding colonoscopy were associated with inadequate intestinal preparation (P<0.05). The results of multivariate logistic regression analysis showed that the older age [OR=0.95, 95%CI(0.92, 0.97)], take medicine [OR=0.35, 95%CI(0.13, 0.94)], character of stool before colonoscopy [OR=0.13, 95%CI(0.06, 0.30)], high fiber diet during the 24h period immediately preceding colonoscopy [OR=0.23, 95%CI(0.10, 0.54)] were independent risk factors for inadequate intestinal preparation. Conclusion: Advanced age, take medicine, character of stool before colonoscopy and high fiber diet predict poor bowel preparation were independent risk factors for inadequate bowel preparation. |