title: Prevalence and risk of colorectal neoplasia in consumers of alcohol in a screening population.
abstract: OBJECTIVE
  Although studies suggest a positive association between alcohol consumption and risk for colorectal neoplasia, the impact on screening has not been fully examined. It is also unclear whether all types of alcohol are associated with an increased risk. We performed a cross-sectional study to examine the impact of regular alcohol consumption on the detection of significant colorectal neoplasia in a screening population.
  
  
  METHODS
  Data collected for 2,291 patients presenting for screening colonoscopy: known risk factors for colorectal neoplasia and alcohol drinking pattern. Our outcome was the endoscopic detection of significant colorectal neoplasia, which included adenocarcinoma, high-grade dysplasia, villous tissue, adenomas 1 cm or greater and multiple (>2) adenomas of any size.
  
  
  RESULTS
  When compared to abstainers, we found an increased risk for significant neoplasia in those patients who consumed more than eight drinks of spirits alcohol (26.3%; OR = 2.53; 95% CI = 1.10-4.28; p < 0.01) and those who drank more than eight servings of beer per week (21.7%; OR = 2.43; 95% CI = 1.11-5.32; p= 0.02). Consuming one to eight glasses of wine per week was associated with a decreased risk for significant neoplasia (OR = 0.55; 95% CI = 0.34-0.87; p < 0.01).
  
  
  CONCLUSIONS
  While there was a more than twofold increased risk of significant colorectal neoplasia in people who drink spirits and beer, people who drank wine had a lower risk. In our sample, people who drank more than eight servings of beer or spirits per week had at least a one in five chance of having significant colorectal neoplasia detected by screening colonoscopy.
authors.affiliation: Department of Gastroenterology and Hepatology, Stony Brook University, Stony Brook, New York 11794, USA.
authors.forename: Joseph C
authors.initials: JC
authors.lastname: Anderson
authors.forename: Zvi
authors.initials: Z
authors.lastname: Alpern
authors.forename: Gurvinder
authors.initials: G
authors.lastname: Sethi
authors.forename: Catherine R
authors.initials: CR
authors.lastname: Messina
authors.forename: Carole
authors.initials: C
authors.lastname: Martin
authors.forename: Patricia M
authors.initials: PM
authors.lastname: Hubbard
authors.forename: Roger
authors.initials: R
authors.lastname: Grimson
authors.forename: Peter F
authors.initials: PF
authors.lastname: Ells
authors.forename: Robert D
authors.initials: RD
authors.lastname: Shaw
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000209:etiology; D000236:Adenoma / Q000175:diagnosis / Q000209:etiology; D000428:Alcohol Drinking / Q000009:adverse effects*; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011230:Precancerous Conditions / Q000175:diagnosis / Q000209:etiology; D015995:Prevalence