Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status

Abstract Exposure to air pollutants is linked to an increased risk of obesity, and socioeconomic status (SES) could modulate this risk. We employed the “Jinchang Cohort” as a platform to investigate the influence of SES (education level, monthly income per household, and marital status) on the obesi...

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Main Authors: Yindi Peng, Yamin Zhao, Minzhen Wang, Yingqian He, Lulu Zhang, Yanan Zhao, Jing Liu, Shan Zheng
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-83923-1
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author Yindi Peng
Yamin Zhao
Minzhen Wang
Yingqian He
Lulu Zhang
Yanan Zhao
Jing Liu
Shan Zheng
author_facet Yindi Peng
Yamin Zhao
Minzhen Wang
Yingqian He
Lulu Zhang
Yanan Zhao
Jing Liu
Shan Zheng
author_sort Yindi Peng
collection DOAJ
description Abstract Exposure to air pollutants is linked to an increased risk of obesity, and socioeconomic status (SES) could modulate this risk. We employed the “Jinchang Cohort” as a platform to investigate the influence of SES (education level, monthly income per household, and marital status) on the obesity risk associated with PM2.5 and its constituents. Study has demonstrated that air pollutant exposure enhances the likelihood of overweight/obesity, with a risk ratio (HR) of 1.229 for each quartile increase in PM2.5 concentration (95% CI: 1.137–1.328, P < 0.05). The risk of overweight/obesity rises with pollutant levels across various SES strata, with the effect being most marked among those with higher SES. For instance, the HRs and 95% CIs for overweight/obesity with each quartile increase in SO4 2− concentration were 1.338 (1.207–1.484), 1.311 (1.121–1.533), and 2.224 (1.823, 2.714) at low, medium, and high SES levels, respectively (all P < 0.05). An interaction between air pollutants and SES was observed in the context of obesity risk, with RERIs of 0.723 (0.473–0.973) and 0.562 (0.268–0.856) for medium-high SES levels and high NO3 − exposure, respectively (both P < 0.05). These findings have practical implications. Public health campaigns could be launched to raise awareness among higher SES individuals about the obesity risk associated with air pollutants and encourage them to adopt preventive measures such as using air purifiers and increasing physical activity.
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spelling doaj-art-96f5a51957854ee3bd143b83f5dcf5232025-01-05T12:20:27ZengNature PortfolioScientific Reports2045-23222025-01-0115111110.1038/s41598-024-83923-1Exposure to PM2.5 and its components leads to obesity: role of socioeconomic statusYindi Peng0Yamin Zhao1Minzhen Wang2Yingqian He3Lulu Zhang4Yanan Zhao5Jing Liu6Shan Zheng7Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityInstitute of Epidemiology and Health Statistics, School of Public Health, Lanzhou UniversityAbstract Exposure to air pollutants is linked to an increased risk of obesity, and socioeconomic status (SES) could modulate this risk. We employed the “Jinchang Cohort” as a platform to investigate the influence of SES (education level, monthly income per household, and marital status) on the obesity risk associated with PM2.5 and its constituents. Study has demonstrated that air pollutant exposure enhances the likelihood of overweight/obesity, with a risk ratio (HR) of 1.229 for each quartile increase in PM2.5 concentration (95% CI: 1.137–1.328, P < 0.05). The risk of overweight/obesity rises with pollutant levels across various SES strata, with the effect being most marked among those with higher SES. For instance, the HRs and 95% CIs for overweight/obesity with each quartile increase in SO4 2− concentration were 1.338 (1.207–1.484), 1.311 (1.121–1.533), and 2.224 (1.823, 2.714) at low, medium, and high SES levels, respectively (all P < 0.05). An interaction between air pollutants and SES was observed in the context of obesity risk, with RERIs of 0.723 (0.473–0.973) and 0.562 (0.268–0.856) for medium-high SES levels and high NO3 − exposure, respectively (both P < 0.05). These findings have practical implications. Public health campaigns could be launched to raise awareness among higher SES individuals about the obesity risk associated with air pollutants and encourage them to adopt preventive measures such as using air purifiers and increasing physical activity.https://doi.org/10.1038/s41598-024-83923-1PM2.5ComponentsSocioeconomic statusObesity
spellingShingle Yindi Peng
Yamin Zhao
Minzhen Wang
Yingqian He
Lulu Zhang
Yanan Zhao
Jing Liu
Shan Zheng
Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
Scientific Reports
PM2.5
Components
Socioeconomic status
Obesity
title Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
title_full Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
title_fullStr Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
title_full_unstemmed Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
title_short Exposure to PM2.5 and its components leads to obesity: role of socioeconomic status
title_sort exposure to pm2 5 and its components leads to obesity role of socioeconomic status
topic PM2.5
Components
Socioeconomic status
Obesity
url https://doi.org/10.1038/s41598-024-83923-1
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