title: Socio-economic position as an intervention against overweight and obesity in children: a systematic review and meta-analysis.
abstract: Studies that investigated the association between socio-economic position (SEP) and obesity in children suggest inconsistent results. The aim of this study is to summarize and quantify the current evidence on SEP and risks of overweight and obesity in children aged 0-15 years. Relevant studies published between 1990 to Sep 4, 2014 were searched in Medline, Web of Science, Embase, and the Cochrane Database of Systematic Reviews. Risk estimates from individual studies were pooled using random-effects models, according to lowest vs the highest SEP category. A total of 62 articles were included in the meta-analysis. The odds of both overweight risk and obesity risk were higher in the children with lowest SEP than in those with highest SEP (OR, 1.10, 95% CI: 1.03-1.17, and OR, 1.41, 95% CI: 1.29-1.55, respectively). Sub-group analyses showed that the inverse relationships between SEP and childhood overweight and obesity were only found in high-income countries and in more economic developed areas. In conclusion, our study suggests that children with lower SEP had higher risks of overweight and obesity, and the increased risks were independent of the income levels of countries.
authors.affiliation: Research and Technology Service Center, 302 Hospital of PLA, Beijing, China.
authors.forename: Shunquan
authors.initials: S
authors.lastname: Wu
authors.affiliation: Department of Medical Microbiology and Parasitology, Second Military Medical University, Shanghai, China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Ding
authors.affiliation: International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai, China.
authors.forename: Fuquan
authors.initials: F
authors.lastname: Wu
authors.affiliation: Research and Technology Service Center, 302 Hospital of PLA, Beijing, China.
authors.forename: Ruisheng
authors.initials: R
authors.lastname: Li
authors.affiliation: Research and Technology Service Center, 302 Hospital of PLA, Beijing, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Research and Technology Service Center, 302 Hospital of PLA, Beijing, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Hou
authors.affiliation: Research and Technology Service Center, 302 Hospital of PLA, Beijing, China.
authors.forename: Panyong
authors.initials: P
authors.lastname: Mao
mesh_terms: D002648:Child; D016208:Databases, Factual; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000473:pathology*; D016017:Odds Ratio; D050177:Overweight / Q000473:pathology*; D012306:Risk; D012923:Social Class