Abstract

In a sobering Article in The Lancet, the GBD 2019 Tobacco Collaborators1 refine methods to estimate the increasing toll of tobacco-attributable morbidity and mortality. The authors analysed data on prevalence of smoking tobacco use from 204 countries and territories between 1990 and 2019, based on information from 3625 self-reported nationally representative surveys. Their analysis, the second to focus on tobacco in the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD),2 improves on calculations of prevalence of smoking in adults and tobacco-related disease by adding over 800 data sources for prevalence and directly estimating the impact of smoking from Bayesian meta-regression analyses of 36 health outcomes.

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