Exposure to PM₂.₅ has been associated with the prevalence of obesity. In the Greater Mexico City Area (GMCA), both are ranked among the highest in the world. Our aim was to analyze this association in children, adolescents, and adults in the GMCA. We used data from the 2006 and 2012 Mexican National Surveys of Health and Nutrition (ENSANUT). Participants’ past-year exposure to ambient PM₂.₅ was assessed using land use terms and satellite-derived aerosol optical depth estimates; weight and height were measured. We used survey-adjusted logistic regression models to estimate the odds ratios (ORs) of obesity (vs. normal-overweight) for every 10 µg/m³ increase in annual PM₂.₅ exposure for children, adolescents, and adults. Using a meta-analysis approach, we estimated the overall odds of obesity. We analyzed data representing 19.3 million and 20.9 million GMCA individuals from ENSANUT 2006 and 2012, respectively. The overall pooled estimate between PM₂.₅ exposure and obesity was OR = 1.96 (95% CI: 1.21, 3.18). For adolescents, a 10 µg/m³ increase in PM₂.₅ was associated with an OR of 3.53 (95% CI: 1.45, 8.58) and 3.79 (95% CI: 1.40, 10.24) in 2006 and 2012, respectively. More studies such as this are recommended in Latin American cities with similar air pollution and obesity conditions.

中文翻译：

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大墨西哥城地区暴露于 PM2.5 和肥胖率

暴露于 PM ₂。₅与肥胖的流行有关。在大墨西哥城地区 (GMCA)，两者都位居世界前列。我们的目的是分析 GMCA 中儿童、青少年和成人的这种关联。我们使用了 2006 年和 2012 年墨西哥国家健康和营养调查 (ENSANUT) 的数据。参与者过去一年暴露于环境 PM _{2 中的情况}。₅使用土地利用条款和卫星衍生的气溶胶光学深度估计进行了评估；测量了体重和身高。我们使用调查调整逻辑回归模型来估计每年 PM _{2 中}每增加10 µg/m ³的肥胖（与正常超重）的优势比 (OR) 。₅暴露于儿童、青少年和成人。我们使用荟萃分析方法估计了肥胖的总体几率。我们分别分析了来自 ENSANUT 2006 和 2012 年的 1930 万和 2090 万 GMCA 个体的数据。_{PM 2}之间的总体汇总估计值。₅暴露和肥胖的 OR = 1.96 (95% CI: 1.21, 3.18)。对于青少年， PM ₂增加10 µg/m ³。₅与 2006 年和 2012 年的 OR 分别为 3.53（95% CI：1.45, 8.58）和 3.79（95% CI：1.40, 10.24）相关。建议在空气污染和肥胖状况相似的拉丁美洲城市进行更多此类研究。