“…4,5,16,17,18 Advanced age, male sex, being inpatient, polypharmacy, constipation, cirrhosis, diabetes mellitus, Parkinson's disease, stroke, hypertension, previous colorectal surgery are conditions related with inadequate bowel preparation. 16,17,18,21,22 In a prospective study of Hendry et al, 23 including 10571 consecutive patients, inadequate bowel preparation was reported with a ratio of 16.9%. In this study, inadequate bowel preparation and incomplete colonoscopy rates were found to be significantly higher, especially in the inpatient group.…”