Long-term exposure to ambient air pollution attenuated the association of physical activity with metabolic syndrome in rural Chinese adults: A cross-sectional study

Jian Hou, Xiaotian Liu, Runqi Tu, Xiaokang Dong, Zhihan Zhai, Zhenxing Mao, Wenqian Huo, Gongbo Chen, Hao Xiang, Yuming Guo, Shanshan Li, Chongjian Wang

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Background: Long-term exposure to ambient air pollution and physical activity are linked to metabolic syndrome (MetS). However, the joint effect of physical activity and ambient air pollution on MetS remains largely unknown in rural Chinese adult population. Methods: In this study, 39 089 individuals were included from the Henan Rural Cohort study that recruited 39 259 individuals at the baseline. Participants' exposure to air pollutants (including particulate matter with an aerodynamic diameter ≤ 1.0 µm (PM1), ≤2.5 µm (PM2.5), or ≤ 10 µm (PM10) and nitrogen dioxide (NO2)) were evaluated by using a spatiotemporal model based on satellites data. Individuals were defined as MetS according to the recommendation of the Joint Interim Societies. Physical activity-metabolic equivalent (MET) was calculated based on the formula of MET coefficient of activity × duration (hour per time) × frequency (times per week). Generalized linear models were used to analyze the individual air pollutant or physical activity and their interaction on MetS. Interaction effects of individual air pollutant and physical activity on MetS were assessed by using Interaction plots which exhibited the estimated effect of physical activity on MetS as a function of individual air pollutant. Results: The prevalence of MetS was 30.8%. The adjusted odd ratio of MetS with a per 5 µg/m3 increase in PM1, PM2.5, PM10, NO2 or a 10 MET (hour/day) of physical activity increment was 1.251(1.199, 1.306), 1.424(1.360, 1.491), 1.228(1.203, 1.254), 1.408(1.363, 1.455) or 0.814(0.796, 0.833). The protective effect of physical activity on MetS was decreased with accompanying air pollutant concentrations increased. Conclusions: The results indicated that long-term exposure to ambient air pollutants related to increased risk of MetS and physical activity attenuated the effects of ambient air pollutants on increased risk for MetS.

Original languageEnglish
Article number105459
Number of pages6
JournalEnvironment International
Volume136
DOIs
Publication statusPublished - 9 Jan 2020

Keywords

  • Gaseous pollutants
  • Metabolic syndrome
  • Particulate matter
  • Physical activity
  • Rural population

Cite this

Hou, Jian ; Liu, Xiaotian ; Tu, Runqi ; Dong, Xiaokang ; Zhai, Zhihan ; Mao, Zhenxing ; Huo, Wenqian ; Chen, Gongbo ; Xiang, Hao ; Guo, Yuming ; Li, Shanshan ; Wang, Chongjian. / Long-term exposure to ambient air pollution attenuated the association of physical activity with metabolic syndrome in rural Chinese adults : A cross-sectional study. In: Environment International. 2020 ; Vol. 136.
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title = "Long-term exposure to ambient air pollution attenuated the association of physical activity with metabolic syndrome in rural Chinese adults: A cross-sectional study",
abstract = "Background: Long-term exposure to ambient air pollution and physical activity are linked to metabolic syndrome (MetS). However, the joint effect of physical activity and ambient air pollution on MetS remains largely unknown in rural Chinese adult population. Methods: In this study, 39 089 individuals were included from the Henan Rural Cohort study that recruited 39 259 individuals at the baseline. Participants' exposure to air pollutants (including particulate matter with an aerodynamic diameter ≤ 1.0 µm (PM1), ≤2.5 µm (PM2.5), or ≤ 10 µm (PM10) and nitrogen dioxide (NO2)) were evaluated by using a spatiotemporal model based on satellites data. Individuals were defined as MetS according to the recommendation of the Joint Interim Societies. Physical activity-metabolic equivalent (MET) was calculated based on the formula of MET coefficient of activity × duration (hour per time) × frequency (times per week). Generalized linear models were used to analyze the individual air pollutant or physical activity and their interaction on MetS. Interaction effects of individual air pollutant and physical activity on MetS were assessed by using Interaction plots which exhibited the estimated effect of physical activity on MetS as a function of individual air pollutant. Results: The prevalence of MetS was 30.8{\%}. The adjusted odd ratio of MetS with a per 5 µg/m3 increase in PM1, PM2.5, PM10, NO2 or a 10 MET (hour/day) of physical activity increment was 1.251(1.199, 1.306), 1.424(1.360, 1.491), 1.228(1.203, 1.254), 1.408(1.363, 1.455) or 0.814(0.796, 0.833). The protective effect of physical activity on MetS was decreased with accompanying air pollutant concentrations increased. Conclusions: The results indicated that long-term exposure to ambient air pollutants related to increased risk of MetS and physical activity attenuated the effects of ambient air pollutants on increased risk for MetS.",
keywords = "Gaseous pollutants, Metabolic syndrome, Particulate matter, Physical activity, Rural population",
author = "Jian Hou and Xiaotian Liu and Runqi Tu and Xiaokang Dong and Zhihan Zhai and Zhenxing Mao and Wenqian Huo and Gongbo Chen and Hao Xiang and Yuming Guo and Shanshan Li and Chongjian Wang",
year = "2020",
month = "1",
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language = "English",
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journal = "Environment International",
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Long-term exposure to ambient air pollution attenuated the association of physical activity with metabolic syndrome in rural Chinese adults : A cross-sectional study. / Hou, Jian; Liu, Xiaotian; Tu, Runqi; Dong, Xiaokang; Zhai, Zhihan; Mao, Zhenxing; Huo, Wenqian; Chen, Gongbo; Xiang, Hao; Guo, Yuming; Li, Shanshan; Wang, Chongjian.

In: Environment International, Vol. 136, 105459, 09.01.2020.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Long-term exposure to ambient air pollution attenuated the association of physical activity with metabolic syndrome in rural Chinese adults

T2 - A cross-sectional study

AU - Hou, Jian

AU - Liu, Xiaotian

AU - Tu, Runqi

AU - Dong, Xiaokang

AU - Zhai, Zhihan

AU - Mao, Zhenxing

AU - Huo, Wenqian

AU - Chen, Gongbo

AU - Xiang, Hao

AU - Guo, Yuming

AU - Li, Shanshan

AU - Wang, Chongjian

PY - 2020/1/9

Y1 - 2020/1/9

N2 - Background: Long-term exposure to ambient air pollution and physical activity are linked to metabolic syndrome (MetS). However, the joint effect of physical activity and ambient air pollution on MetS remains largely unknown in rural Chinese adult population. Methods: In this study, 39 089 individuals were included from the Henan Rural Cohort study that recruited 39 259 individuals at the baseline. Participants' exposure to air pollutants (including particulate matter with an aerodynamic diameter ≤ 1.0 µm (PM1), ≤2.5 µm (PM2.5), or ≤ 10 µm (PM10) and nitrogen dioxide (NO2)) were evaluated by using a spatiotemporal model based on satellites data. Individuals were defined as MetS according to the recommendation of the Joint Interim Societies. Physical activity-metabolic equivalent (MET) was calculated based on the formula of MET coefficient of activity × duration (hour per time) × frequency (times per week). Generalized linear models were used to analyze the individual air pollutant or physical activity and their interaction on MetS. Interaction effects of individual air pollutant and physical activity on MetS were assessed by using Interaction plots which exhibited the estimated effect of physical activity on MetS as a function of individual air pollutant. Results: The prevalence of MetS was 30.8%. The adjusted odd ratio of MetS with a per 5 µg/m3 increase in PM1, PM2.5, PM10, NO2 or a 10 MET (hour/day) of physical activity increment was 1.251(1.199, 1.306), 1.424(1.360, 1.491), 1.228(1.203, 1.254), 1.408(1.363, 1.455) or 0.814(0.796, 0.833). The protective effect of physical activity on MetS was decreased with accompanying air pollutant concentrations increased. Conclusions: The results indicated that long-term exposure to ambient air pollutants related to increased risk of MetS and physical activity attenuated the effects of ambient air pollutants on increased risk for MetS.

AB - Background: Long-term exposure to ambient air pollution and physical activity are linked to metabolic syndrome (MetS). However, the joint effect of physical activity and ambient air pollution on MetS remains largely unknown in rural Chinese adult population. Methods: In this study, 39 089 individuals were included from the Henan Rural Cohort study that recruited 39 259 individuals at the baseline. Participants' exposure to air pollutants (including particulate matter with an aerodynamic diameter ≤ 1.0 µm (PM1), ≤2.5 µm (PM2.5), or ≤ 10 µm (PM10) and nitrogen dioxide (NO2)) were evaluated by using a spatiotemporal model based on satellites data. Individuals were defined as MetS according to the recommendation of the Joint Interim Societies. Physical activity-metabolic equivalent (MET) was calculated based on the formula of MET coefficient of activity × duration (hour per time) × frequency (times per week). Generalized linear models were used to analyze the individual air pollutant or physical activity and their interaction on MetS. Interaction effects of individual air pollutant and physical activity on MetS were assessed by using Interaction plots which exhibited the estimated effect of physical activity on MetS as a function of individual air pollutant. Results: The prevalence of MetS was 30.8%. The adjusted odd ratio of MetS with a per 5 µg/m3 increase in PM1, PM2.5, PM10, NO2 or a 10 MET (hour/day) of physical activity increment was 1.251(1.199, 1.306), 1.424(1.360, 1.491), 1.228(1.203, 1.254), 1.408(1.363, 1.455) or 0.814(0.796, 0.833). The protective effect of physical activity on MetS was decreased with accompanying air pollutant concentrations increased. Conclusions: The results indicated that long-term exposure to ambient air pollutants related to increased risk of MetS and physical activity attenuated the effects of ambient air pollutants on increased risk for MetS.

KW - Gaseous pollutants

KW - Metabolic syndrome

KW - Particulate matter

KW - Physical activity

KW - Rural population

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U2 - 10.1016/j.envint.2020.105459

DO - 10.1016/j.envint.2020.105459

M3 - Article

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VL - 136

JO - Environment International

JF - Environment International

SN - 0160-4120

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