Ambient air pollution and the prevalence of obesity in chinese children: The seven northeastern cities study

  • Guang Hui Dong
  • , Zhengmin Qian
  • , Miao Miao Liu
  • , Da Wang
  • , Wan Hui Ren
  • , Louise H. Flick
  • , John Fu
  • , Jing Wang
  • , Weiqing Chen
  • , Maayan Simckes
  • , Edwin Trevathan

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

Objective The association between air pollution and the prevalence of overweight and obesity is evaluated. Methods The population consisted of 30,056 children (aged 2-14 years), randomly selected from 25 districts in Northeast China. Child weight and height were measured, and exposures to particulate matter with an aerodynamic diameter ≤10 μm (PM10), sulfur dioxide (SO2), nitrogen dioxides (NO2), and Ozone (O 3) were estimated from the data collected at monitoring stations in the 25 districts. Using two-level logistic models, we examined the association between the exposure and the prevalence of overweight and obesity. Results Among the study children, 12.3% (3,704) were overweight and 14.1% (4,233) were obese. After adjusting for confounding factors, an increased prevalence of obesity was associated with an interquartile range increase in PM10 (31 μg/m3; odds ratio [ORs] = 1.19; 95% confidence interval [CI]: 1.11-1.26), SO2 (7.4 ppb; ORs = 1.11; 95% CI: 1.03-1.20), NO 2 (5.3 ppb; ORs = 1.13; 95% CI: 1.04-1.22), and O3 (11.5 ppb; ORs = 1.14; 95% CI: 1.04-1.24). Prevalence of overweight increased with an interquartile range increase in O3 (11.5 ppb; ORs = 1.09; 95% CI: 1.03-1.15). Conclusions This study suggests that air pollution is positively associated with an increased likelihood of obesity or overweight in children.

Original languageEnglish
Pages (from-to)795-800
Number of pages6
JournalObesity
Volume22
Issue number3
DOIs
StatePublished - Mar 2014

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