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Trends in adult body-mass index in 200 countries from 1975 to 2014: a pooled analysis of 1698 population-based measurement studies with 19ยท2 million participants

dc.contributor.authorNCD Risk Factor Collaboration
dc.date.accessioned2017-11-15T16:50:40Z
dc.date.available2017-11-15T16:50:40Z
dc.date.issued2016-04-02
dc.description.abstractBackground: Underweight and severe and morbid obesity are associated with highly elevated risks of adverse health outcomes. We estimated trends in mean body-mass index (BMI), which characterises its population distribution, and in the prevalences of a complete set of BMI categories for adults in all countries.pt_PT
dc.description.abstractMethods: We analysed, with use of a consistent protocol, population-based studies that had measured height and weight in adults aged 18 years and older. We applied a Bayesian hierarchical model to these data to estimate trends from 1975 to 2014 in mean BMI and in the prevalences of BMI categories (<18ยท5 kg/m(2) [underweight], 18ยท5 kg/m(2) to <20 kg/m(2), 20 kg/m(2) to <25 kg/m(2), 25 kg/m(2) to <30 kg/m(2), 30 kg/m(2) to <35 kg/m(2), 35 kg/m(2) to <40 kg/m(2), โ‰ฅ40 kg/m(2) [morbid obesity]), by sex in 200 countries and territories, organised in 21 regions. We calculated the posterior probability of meeting the target of halting by 2025 the rise in obesity at its 2010 levels, if post-2000 trends continue.pt_PT
dc.description.abstractFindings: We used 1698 population-based data sources, with more than 19ยท2 million adult participants (9ยท9 million men and 9ยท3 million women) in 186 of 200 countries for which estimates were made. Global age-standardised mean BMI increased from 21ยท7 kg/m(2) (95% credible interval 21ยท3-22ยท1) in 1975 to 24ยท2 kg/m(2) (24ยท0-24ยท4) in 2014 in men, and from 22ยท1 kg/m(2) (21ยท7-22ยท5) in 1975 to 24ยท4 kg/m(2) (24ยท2-24ยท6) in 2014 in women. Regional mean BMIs in 2014 for men ranged from 21ยท4 kg/m(2) in central Africa and south Asia to 29ยท2 kg/m(2) (28ยท6-29ยท8) in Polynesia and Micronesia; for women the range was from 21ยท8 kg/m(2) (21ยท4-22ยท3) in south Asia to 32ยท2 kg/m(2) (31ยท5-32ยท8) in Polynesia and Micronesia. Over these four decades, age-standardised global prevalence of underweight decreased from 13ยท8% (10ยท5-17ยท4) to 8ยท8% (7ยท4-10ยท3) in men and from 14ยท6% (11ยท6-17ยท9) to 9ยท7% (8ยท3-11ยท1) in women. South Asia had the highest prevalence of underweight in 2014, 23ยท4% (17ยท8-29ยท2) in men and 24ยท0% (18ยท9-29ยท3) in women. Age-standardised prevalence of obesity increased from 3ยท2% (2ยท4-4ยท1) in 1975 to 10ยท8% (9ยท7-12ยท0) in 2014 in men, and from 6ยท4% (5ยท1-7ยท8) to 14ยท9% (13ยท6-16ยท1) in women. 2ยท3% (2ยท0-2ยท7) of the world's men and 5ยท0% (4ยท4-5ยท6) of women were severely obese (ie, have BMI โ‰ฅ35 kg/m(2)). Globally, prevalence of morbid obesity was 0ยท64% (0ยท46-0ยท86) in men and 1ยท6% (1ยท3-1ยท9) in women.pt_PT
dc.description.abstractInterpretation: If post-2000 trends continue, the probability of meeting the global obesity target is virtually zero. Rather, if these trends continue, by 2025, global obesity prevalence will reach 18% in men and surpass 21% in women; severe obesity will surpass 6% in men and 9% in women. Nonetheless, underweight remains prevalent in the world's poorest regions, especially in south Asia.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationThe Lancet Volume 387, Issue 10026, 2โ€“8 April 2016, 1377-1396. DOI 10.1016/S0140-6736(16)30054-Xpt_PT
dc.identifier.doi10.1016/S0140-6736(16)30054-Xpt_PT
dc.identifier.issn0140-6736
dc.identifier.urihttp://hdl.handle.net/10400.26/19333
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/S0140-6736(16)30054-Xpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBody Mass Indexpt_PT
dc.subjectAdultpt_PT
dc.subjectObesitypt_PT
dc.subjectThinnesspt_PT
dc.titleTrends in adult body-mass index in 200 countries from 1975 to 2014: a pooled analysis of 1698 population-based measurement studies with 19ยท2 million participantspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1396pt_PT
oaire.citation.startPage1377pt_PT
oaire.citation.titleThe Lancetpt_PT
oaire.citation.volume387(10026)pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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