title: Age Is the Only Predictor of Poor Bowel Preparation in the Hospitalized Patient.
abstract: We examine the impact of key variables on the likelihood of inpatient poor bowel preparation for colonoscopy. Records of inpatients that underwent colonoscopy at our institution between January 2010 and December 2011 were retrospectively extracted. Univariable and multivariable logistic regression models were fitted to assess the effect of clinical variables on the odds of poor preparation. Tested predictors included age; gender; use of narcotics; heavy medication burden; comorbidities; history of previous abdominal surgery; neurological disorder; product used for bowel preparation, whether or not the bowel regimen was given as split or standard dose; and time of endoscopy. Overall, 244 patients were assessed including 83 (34.0%, 95% CI: 28.1-39.9%) with poor bowel preparation. Cecal intubation was achieved in 81.1% of patients (95% CI: 76.2-86.0%). When stratified by quality of bowel preparation, cecal intubation was achieved in only 65.9% (95% CI: 60.0-71.9%) of patients with poor bowel preparation and 89.9% (95% CI: 86.1-93.7%) of patient with good bowel preparation. In multivariate logistic regression analysis, only advancing age was an independent predictor of poor bowel preparation (OR = 1.026, CI: 1.006 to 1.045, and p = 0.008). Age is the only independent predictor of poor bowel preparation amongst hospitalized patients.
authors.affiliation: Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
authors.forename: Julia
authors.initials: J
authors.lastname: McNabb-Baltar
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Alastair
authors.initials: A
authors.lastname: Dorreen
authors.affiliation: Royal Hospital, Muscat, Oman.
authors.forename: Hisham
authors.initials: H
authors.lastname: Al Dhahab
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Michael
authors.initials: M
authors.lastname: Fein
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Xin
authors.initials: X
authors.lastname: Xiong
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Mike
authors.initials: M
authors.lastname: O' Byrne
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Imene
authors.initials: I
authors.lastname: Ait
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Myriam
authors.initials: M
authors.lastname: Martel
authors.affiliation: Division of Gastroenterology, McGill University, Montreal, QC, Canada.
authors.forename: Alan N
authors.initials: AN
authors.lastname: Barkun
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002400:Cathartics / Q000008:administration & dosage; D002432:Cecum; D003113:Colonoscopy / Q000592:standards*; D005260:Female; D006760:Hospitalization; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies
chemical_list: D002400:Cathartics