Prolonged Life Expectancy for Those Dying of Stroke by Achieving the Daily PM _2.5 Targets

摘要

This time‐series study collects data on stroke‐related mortality, years of life lost (YLL), air pollution, and meteorological conditions in 96 Chinese cities from 2013 to 2016 and proposes a three‐stage strategy to generate the national and regional estimations of avoidable YLL, gains in life expectancy and stroke‐related population attributable fraction by postulating that the daily fine particulate matter (PM_(2.5)) has been kept under certain standards. A total of 1?318?911 stroke deaths are analyzed. Each 10?μg m~(?3)increment in PM_(2.5)at lag_(03)is associated with a city‐mean increase of 0.31 (95% CI: 0.19, 0.44) years of life lost from stroke. A number of 914.11 (95% CI: 538.28, 1288.94) years of city‐mean life lost from stoke could be avoided by attaining the WHO's Air Quality Guidelines (AQG) (25?μg m~(?3)). Moreover, by applying the AQG standard, 0.11 (0.08, 0.15) years of life lost might be prevented for each death, and about 0.91% (95% CI: 0.62%, 1.19%) of the total years of life lost from stroke might be explained by the daily excess PM_(2.5)exposure. This study indicates that stroke patients can have a longer life expectancy if stricter PM_(2.5)standards are put in place, especially ischemic stroke patients. This study aims to examine the relationships between daily fine particulate matter PM_(2.5)pollution and stroke‐related years of life lost YLL and potential gains in life expectancy by achieving different PM_(2.5)standards in 96 Chinese cities from 2013 to 2016. The results show that daily PM_(2.5)exposure is associated with YLL due to stroke, and that life expectancy can be longer by adopting stricter PM_(2.5)standards.