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Long-Term Exposure to Ambient Fine Particulate Matter (PM2.5) and Lung Function in Children, Adolescents, and Young Adults: A Longitudinal Cohort Study.


ABSTRACT:

Background

The association between long-term exposure to ambient fine particulate matter with aerodynamic diameter ?2.5?m (PM2.5) and lung function in young people remains uncertain, particularly in Asia, where air pollution is generally a serious problem.

Objectives

This study investigated the association between long-term exposure to ambient PM2.5 and lung function in Taiwanese children, adolescents, and young adults.

Methods

This study comprised 24,544 participants 6-24 years of age, with 33,506 medical observations made between 2000 and 2014. We used a spatiotemporal model to estimate PM2.5 concentrations at participants' addresses. Spirometry parameters, i.e., forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), and maximum midexpiratory flow (MMEF), were determined. A generalized linear mixed model was used to examine the associations between long-term exposure to ambient PM2.5 and lung function. The odds ratios (ORs) of poor lung function were also calculated after adjusting for a range of covariates.

Results

Every 10-?g/m3 increase in the 2-y average PM2.5 concentration was associated with decreases of 2.22% [95% confidence interval (CI): -2.60, -1.85], 2.94 (95% CI: -3.36, -2.51), and 2.79% (95% CI: -3.15, -2.41) in the FVC, FEV1, and MMEF, respectively. Furthermore, it was associated with a 20% increase in the prevalence of poor lung function (OR: 1.20; 95% CI: 1.12, 1.29).

Conclusions

Two-year ambient PM2.5 concentrations were inversely associated with lung function and positively associated with the prevalence of poor lung function in children, adolescents, and young adults in Taiwan. https://doi.org/10.1289/EHP5220.

SUBMITTER: Guo C 

PROVIDER: S-EPMC6957275 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Publications

Long-Term Exposure to Ambient Fine Particulate Matter (PM2.5) and Lung Function in Children, Adolescents, and Young Adults: A Longitudinal Cohort Study.

Guo Cui C   Hoek Gerard G   Chang Ly-Yun LY   Bo Yacong Y   Lin Changqing C   Huang Bo B   Chan Ta-Chien TC   Tam Tony T   Lau Alexis K H AKH   Lao Xiang Qian XQ  

Environmental health perspectives 20191224 12


<h4>Background</h4>The association between long-term exposure to ambient fine particulate matter with aerodynamic diameter ≤2.5μm (PM2.5) and lung function in young people remains uncertain, particularly in Asia, where air pollution is generally a serious problem.<h4>Objectives</h4>This study investigated the association between long-term exposure to ambient PM2.5 and lung function in Taiwanese children, adolescents, and young adults.<h4>Methods</h4>This study comprised 24,544 participants 6-24  ...[more]

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