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Comment & Response
January 2014

Lack of Adjustment for Body Mass Index

Author Affiliations
  • 1International Prevention Research Institute (iPRI), Lyon, France

Copyright 2014 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.

JAMA Intern Med. 2014;174(1):168-169. doi:10.1001/jamainternmed.2013.11171

To the Editor In a recent issue of the Journal, Orlich et al1 described in an observational cohort study a relation between dietary patterns and all-cause mortality. Compared with nonvegetarians, vegans had a hazard ratio of 0.85 (95% CI, 0.73-1.01) for all-cause mortality. The regression models were adjusted for known covariates, such as age, smoking, physical activity, alcohol consumption, and socioeconomic status.