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National, regional, and global trends in body-mass index since 1980: systematic analysis of health examination surveys and epidemiological studies wit

Author: Mariel M Finucane, Gretchen A Stevens, Melanie J Cowan et al.
Organisation: Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London
Publish Date: Feb 2011
Country: Global
Sector: Health
Method: Creative thinking
Theme: Food
Type: Article
Language: English
Tags: Obesity, Excess body weight, Body mass index BMI, Obesity prevalence, Statistical analysis

Estimated trends and their uncertainties of mean BMI for adults 20 years and older in 199 countries and territories. Obtained data from published and unpublished health examination surveys and epidemiological studies (960 country-years and 9•1 million participants). For each sex, we used a Bayesian hierarchical model to estimate mean BMI by age, country, and year, accounting for whether a study was nationally representative. Concludes that globally, mean BMI has increased since 1980. The trends since 1980, and mean population BMI in 2008, varied substantially between nations. Interventions and policies that can curb or reverse the increase, and mitigate the health effects of high BMI by targeting its metabolic mediators, are needed in most countries.
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