Fine Particulate Air Pollution and Daily Mortality. A Nationwide Analysis in 272 Chinese Cities

Evidence concerning the acute health effects of air pollution caused by fine particulate matter (PM ) in developing countries is quite limited. To evaluate short-term associations between PM and daily cause-specific mortality in China. A nationwide time-series analysis was performed in 272 represent...

Full description

Saved in:
Bibliographic Details
Published in:American journal of respiratory and critical care medicine Vol. 196; no. 1; pp. 73 - 81
Main Authors: Chen, Renjie, Yin, Peng, Meng, Xia, Liu, Cong, Wang, Lijun, Xu, Xiaohui, Ross, Jennifer A., Tse, Lap A., Zhao, Zhuohui, Kan, Haidong, Zhou, Maigeng
Format: Journal Article
Language:English
Published: United States American Thoracic Society 01.07.2017
Subjects:
Air pollution
Air Pollution - analysis
Air Pollution - statistics & numerical data
Bayes Theorem
Cardiovascular disease
Cardiovascular Diseases - mortality
China - epidemiology
Cities - statistics & numerical data
Health risk assessment
Humans
Mortality
Outdoor air quality
Particulate Matter - analysis
North America
China
Europe
mortality
air pollution
time-series
China
fine particulates
ISSN:1073-449X, 1535-4970, 1535-4970
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Evidence concerning the acute health effects of air pollution caused by fine particulate matter (PM ) in developing countries is quite limited. To evaluate short-term associations between PM and daily cause-specific mortality in China. A nationwide time-series analysis was performed in 272 representative Chinese cities from 2013 to 2015. Two-stage Bayesian hierarchical models were applied to estimate regional- and national-average associations between PM concentrations and daily cause-specific mortality. City-specific effects of PM were estimated using the overdispersed generalized additive models after adjusting for time trends, day of the week, and weather conditions. Exposure-response relationship curves and potential effect modifiers were also evaluated. The average of annual mean PM concentration in each city was 56 μg/m (minimum, 18 μg/m ; maximum, 127 μg/m ). Each 10-μg/m increase in 2-day moving average of PM concentrations was significantly associated with increments in mortality of 0.22% from total nonaccidental causes, 0.27% from cardiovascular diseases, 0.39% from hypertension, 0.30% from coronary heart diseases, 0.23% from stroke, 0.29% from respiratory diseases, and 0.38% from chronic obstructive pulmonary disease. There was a leveling off in the exposure-response curves at high concentrations in most, but not all, regions. The associations were stronger in cities with lower PM levels or higher temperatures, and in subpopulations with elder age or less education. This nationwide investigation provided robust evidence of the associations between short-term exposure to PM and increased mortality from various cardiopulmonary diseases in China. The magnitude of associations was lower than those reported in Europe and North America.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:1073-449X
1535-4970
1535-4970
DOI:10.1164/rccm.201609-1862OC