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Residential density and adolescent overweight in a rapidly urbanising region of mainland China

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dc.contributor.authorXu, F.
dc.contributor.authorLi, J.
dc.contributor.authorLiang, Y.
dc.contributor.authorWang, Z.
dc.contributor.authorHong, X.
dc.contributor.authorWare, R.S.
dc.contributor.authorLeslie, E.
dc.contributor.authorSugiyama, T.
dc.contributor.authorOwen, N.
dc.date.issued2010
dc.description.abstractObjective: This study investigated the association of residential density with overweight among adolescents in an urban area of China. Methods: Using multistage proportional sampling methods, a population-based cross-sectional study was conducted in Nanjing between September and November 2004 (n¼2375; mean age¼13.961.0 years old; 46.2% boys; survey response rate¼89.3%). Body mass index was calculated from self-reported body weight and height. Overweight, the main outcome variable, was defined as a BMI $85 percentile value for age- and gender-specific reference data according to the recommendation for Chinese adolescents. The primary explanatory variable was the residential density of the urban districts. Mixed-effects logistic regression models were used for the analysis. Results: Students in the higher and middle tertiles of residential density had a 2.17-fold (95% CI 1.41 to 3.33) and 1.89-fold (95% CI 1.22 to 2.92) higher likelihood of being overweight, respectively, compared with those in the lower tertile. The associations were slightly attenuated but still significant after adjusting for time spent in recreational physical activity and sedentary behaviour (viewing TV and sitting for academic study). Conclusions: Residential density was positively associated with overweight among urban Chinese adolescents. Our findings warrant further research examining attributes of urban environments associated with adolescents' obesity in China and potential mechanisms between them.
dc.identifier.citationJournal of Epidemiology and Community Health, 2010; 64(11):1017-1021
dc.identifier.doi10.1136/jech.2009.094169
dc.identifier.issn0143-005X
dc.identifier.issn1470-2738
dc.identifier.urihttps://hdl.handle.net/1959.8/152794
dc.language.isoen
dc.publisherBMJ Publishing Group
dc.relation.fundingNanjing Municipal Department of Health 2004-84-ZKX0418
dc.relation.fundingNanjing Municipal Department of Science & Technology 2004-168-0414
dc.relation.fundingNHMRC Public Health Fellowship 301261
dc.relation.fundingNHMRC 301200
dc.relation.fundingQueensland Health
dc.rightsCopyright 2010 BMJ Publishing Group
dc.source.urihttps://doi.org/10.1136/jech.2009.094169
dc.subjectresidential density
dc.subjectadolescent overweight
dc.subjectChina
dc.titleResidential density and adolescent overweight in a rapidly urbanising region of mainland China
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9915910466901831

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