Sa1032 PREDICTION OF BOWEL PREPARATION SCALE FOR COLONOSCOPY ACCORDING TO THE PERSONAL BOWEL HABITS - A PROSPECTIVE STUDY

Abstract

The quality of bowel preparation for colonoscopy is very various, according to personal bowel habits. We aimed to demonstrate the effect of bowel habits on bowel preparation scale, prospectively. Patient and colonoscopy data were prospectively collected for participants who agreed and answered the questionnaires about personal bowel habits, including stool form, frequency of [D1] bowel movement per week, time duration [D2] and degree of strain[D3] ing for defecation. Six endoscopists performed colonoscopy and measured Boston bowel preparation scale (BBPS) as the index of bowel preparation. Two endoscopists simultaneously reviewed all colonoscopic images to confirm the final BBPS. Univariate and multivariate logistic regression analyses were performed to verify the correlation between bowel preparation adequacy and bowel habits. From June 2017 to August 2017, 90 volunteers were enrolled in this study. The mean age of study population was 57.3 13.7 years and 54.4% were male. Among participants, 20 (22.2%) had inadequate bowel preparation (total BBPS ≤ 6 or segmental BBPS ≤ 1). In univariate analysis, frequency of [D4] bowel movement per week and degree of straining are significantly associated with inadequate bowel preparation (odds ratio 12.6; 95% confidence interval 1.2-129.7, P < 0.05 and 4.4; 95% confidence interval 1.4-13.3, P < 0.05, respectively). However, in multivariate analysis, degree of straining is significantly associated with inadequate bowel preparation (odds ratio 3.9; 95% confidence interval 1.2-12.3, P < 0.05). Personal bowel habits, especially the degree of straining, have a significant effect on the bowel preparation scale; the more straining, the poorer bowel preparation. Therefore, for the patients with straining during bowel movement, an intensified preparation regimen would be considered.