Bowel preparation evaluation
Boston Bowel Preparation Scale (BBPS) was used to score bowel preparation [Score 0: The colon was not visible without mucosal preparation due to the presence of solid stools.Score 1: Some Parts of the mucous were seen in the colon, but others were not visible due to stains, stools, or opaque fluid.Score 2: A small amount of residue, small pieces of stool, or opaque fluid existed, but the mucosal part of the colon was seen well.Score 3: All mucosal layer of the colon was seen well without any stains, small pieces of stool, or opaque fluid.The predictive scale used for bowel preparation was appropriate if BBPS score ≥ 2 was observed in each three parts of the colon.