The Effect of Obesity on the Quality of Bowel Preparation for Colonoscopy: Results From a Large Observational Study.

Background: Obesity has been linked to suboptimal bowel preparation but this association has not been conclusively investigated in prospective studies.

Goals: Our objective was to determine whether any relationship exists between obesity as measured by body mass index (BMI) and quality of bowel preparation.

Study: Adult patients who presented for outpatient colonoscopy at a single urban ambulatory surgery center within a 6-month period and fulfilled inclusion criteria were prospectively enrolled for the study.