A burden of proof study on alcohol consumption and ischemic heart disease

Nat Commun. 2024 May 14;15(1):4082. doi: 10.1038/s41467-024-47632-7.

Abstract

Cohort and case-control data have suggested an association between low to moderate alcohol consumption and decreased risk of ischemic heart disease (IHD), yet results from Mendelian randomization (MR) studies designed to reduce bias have shown either no or a harmful association. Here we conducted an updated systematic review and re-evaluated existing cohort, case-control, and MR data using the burden of proof meta-analytical framework. Cohort and case-control data show low to moderate alcohol consumption is associated with decreased IHD risk - specifically, intake is inversely related to IHD and myocardial infarction morbidity in both sexes and IHD mortality in males - while pooled MR data show no association, confirming that self-reported versus genetically predicted alcohol use data yield conflicting findings about the alcohol-IHD relationship. Our results highlight the need to advance MR methodologies and emulate randomized trials using large observational databases to obtain more definitive answers to this critical public health question.

Publication types

  • Systematic Review
  • Meta-Analysis

MeSH terms

  • Alcohol Drinking* / epidemiology
  • Case-Control Studies
  • Cohort Studies
  • Female
  • Humans
  • Male
  • Mendelian Randomization Analysis*
  • Myocardial Infarction / epidemiology
  • Myocardial Ischemia* / epidemiology
  • Risk Factors