Fiwi classifieds6/12/2023 Comparable, up-to-date information about levels and trends is essential to quantify population health eff ects and to prompt decision makers to prioritise action. The rise in obesity has led to widespread calls for regular monitoring of changes in overweight and obesity prevalence in all populations. Urgent global action and leadership is needed to help countries to more effectively intervene.īackground In 2010, overweight and obesity were estimated to cause 3♴ million deaths, 3♹% of years of life lost, and 3♸% of disability-adjusted life-years (DALYs) worldwide. Not only is obesity increasing, but no national success stories have been reported in the past 33 years. Interpretation Because of the established health risks and substantial increases in prevalence, obesity has become a major global health challenge. Since 2006, the increase in adult obesity in developed countries has slowed down. In adults, estimated prevalence of obesity exceeded 50% in men in Tonga and in women in Kuwait, Kiribati, Federated States of Micronesia, Libya, Qatar, Tonga, and Samoa. The prevalence of overweight and obesity has also increased in children and adolescents in developing countries, from 8♱% (7♷–8♶) to 12♹% (12♳–13♵) in 2013 for boys and from 8♴% (8♱–8♸) to 13♴% (13♰–13♹) in girls. Prevalence has increased substantially in children and adolescents in developed countries 23♸% (22♹–24♷) of boys and 22♶% (21♷–23♶) of girls were overweight or obese in 2013. Findings Worldwide, the proportion of adults with a body-mass index (BMI) of 25 kg/m2 or greater increased between 19 from 28♸% (95% UI 28♴–29♳) to 36♹% (36♳–37♴) in men, and from 29♸% (29♳–30♲) to 38♰% (37♵–38♵) in women. We obtained data for prevalence of obesity and overweight by age, sex, country, and year (n=19 244) with a spatiotemporal Gaussian process regression model to estimate prevalence with 95% uncertainty intervals (UIs). We used mixed effects linear regression to correct for bias in self-reports. Methods We systematically identified surveys, reports, and published studies (n=1769) that included data for height and weight, both through physical measurements and self-reports. We estimate the global, regional, and national prevalence of overweight and obesity in children and adults during 1980–2013. Comparable, up-to-date information about levels and trends is essential to quantify population health effects and to prompt decision makers to prioritise action. Background In 2010, overweight and obesity were estimated to cause 3♴ million deaths, 3♹% of years of life lost, and 3♸% of disability-adjusted life-years (DALYs) worldwide.
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