Acute lower gastrointestinal bleeding was the major indication for emergency endoscopy. Fifteen colonic perforations (0.15%) were identified; 14 from colonoscopy and one from flexible sigmoidoscopy.

There were 15 colonic perforations (0.15%). Colonoscopy had a slightly higher risk of CP than flexible sigmoidoscopy (OR 1.77, 95%CI 0.23–13.51; p = 1.0). Patient gender, emergency endoscopy ...