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Multicenter Study
, 123 (6), 1035-1043

Prediagnostic Alcohol Consumption and Colorectal Cancer Survival: The Colon Cancer Family Registry

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Multicenter Study

Prediagnostic Alcohol Consumption and Colorectal Cancer Survival: The Colon Cancer Family Registry

Amanda I Phipps et al. Cancer.

Abstract

Background: Although previous studies have noted an increased risk of colorectal cancer (CRC) among moderate to heavy alcohol consumers in comparison with nondrinkers, the relation between alcohol consumption and CRC survival remains unclear.

Methods: Cases of incident invasive CRC diagnosed between 1997 and 2007 were identified via population-based cancer registries at 4 study sites in the Colon Cancer Family Registry. Study participants completed a risk-factor questionnaire on prediagnostic behaviors, including wine, beer, and liquor consumption, at the baseline. Prospective follow-up for survival was conducted for 4966 CRC cases. Cox regression was used to compare nondrinkers with individuals who consumed, on average, 1 or more servings of alcohol per day in the years preceding their CRC diagnosis with respect to overall and disease-specific survival. Separate analyses by beverage type, stratified by patient and tumor attributes, were also performed. All models were adjusted for the age at diagnosis, sex, study site, year of diagnosis, smoking history, body mass index, and education.

Results: Prediagnostic beer and liquor consumption was not associated with CRC survival; however, higher levels of wine consumption were modestly associated with a better prognosis overall (CRC-specific hazard ratio [HR], 0.70, 95% confidence interval [CI], 0.48-1.03; overall HR, 0.70; 95% CI, 0.53-0.94). Similar patterns were noted in stratified analyses.

Conclusions: These findings suggest that prediagnostic wine consumption is modestly associated with more favorable survival after CRC. Cancer 2017;123:1035-43. © 2016 American Cancer Society.

Keywords: alcohol consumption; colorectal cancer; survival; tumor phenotype; wine.

Conflict of interest statement

Conflict of Interest Disclosures: None to report.

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