Namanjeet Ahluwalia1, Paola Dalmasso2, Mette Rasmussen3, Leah Lipsky4, Candace Currie5, Ellen Haug6, Colette Kelly7, Mogens Trab Damsgaard3, Pernille Due3, Izabela Tabak8, Oya Ercan9, Lea Maes10, Katrin Aasvee11, Franco Cavallo2. 1. 1 Faculty of Medicine, University of Paris-13, Bobigny, France. Current address: Maryland, USA naman123@sfr.fr. 2. 2 Department of Public Health and Paediatrics, School of Medicine, University of Torino, Torino, Italy. 3. 3 National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark. 4. 4 Division of Intramural Public Health Research, Eunice Kennedy Shriver National Institute of Child Health & Human Development, Bethesda, MD, USA. 5. 5 Child and Adolescent Health Research Unit, School of Medicine, University of St Andrews, St Andrews, Scotland, UK. 6. 6 University of Bergen, Bergen, Norway. 7. 7 Health Promotion Research Centre, National University of Ireland, Galway, Ireland. 8. 8 Department of Child and Adolescent Health, Institute of Mother and Child, Warsaw, Poland. 9. 9 Pediatric Endocrinology and Adolescent Divisions, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey. 10. 10 Academical Hospital, Gent, Belgium. 11. 11 Chronic Diseases Department, National Institute for Health Development, Tallinn, Estonia.
Abstract
BACKGROUND: The purpose of this study was to assess recent changes in the prevalence of overweight (including obesity) among 11-, 13- and 15-year-olds in 33 countries from 2002 to 2010. METHODS: Data from 25 countries from three consecutive survey cycles (2002, 2006 and 2010) that had at least 80% response rate for self-reported height, weight and age were analysed using logistic regression analysis. RESULTS: Overweight prevalence increased among boys in 13 countries and among girls in 12 countries; in 10 countries, predominantly in Eastern Europe, an increase was observed for both boys and girls. Stabilization in overweight rates was noted in the remaining countries; none of the countries exhibited a decrease over the 8-year period examined. In the majority of countries (20/25) there were no age differences in trends in overweight prevalence. CONCLUSION: In over half of the countries examined overweight prevalence did not change during 2002-2010. However, increasing overweight prevalence was noted in many Eastern European countries over this time period. Overweight prevalence remained high in several countries in Europe and North America. These patterns call for continued research in youth overweight and highlight the need to understand cross-national differences by examining macro-level indicators. Such research should feed into developing sound translations and practices to prevent and reduce overweight in youth.
BACKGROUND: The purpose of this study was to assess recent changes in the prevalence of overweight (including obesity) among 11-, 13- and 15-year-olds in 33 countries from 2002 to 2010. METHODS: Data from 25 countries from three consecutive survey cycles (2002, 2006 and 2010) that had at least 80% response rate for self-reported height, weight and age were analysed using logistic regression analysis. RESULTS: Overweight prevalence increased among boys in 13 countries and among girls in 12 countries; in 10 countries, predominantly in Eastern Europe, an increase was observed for both boys and girls. Stabilization in overweight rates was noted in the remaining countries; none of the countries exhibited a decrease over the 8-year period examined. In the majority of countries (20/25) there were no age differences in trends in overweight prevalence. CONCLUSION: In over half of the countries examined overweight prevalence did not change during 2002-2010. However, increasing overweight prevalence was noted in many Eastern European countries over this time period. Overweight prevalence remained high in several countries in Europe and North America. These patterns call for continued research in youth overweight and highlight the need to understand cross-national differences by examining macro-level indicators. Such research should feed into developing sound translations and practices to prevent and reduce overweight in youth.
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