School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China.
School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China.
Sci Total Environ. 2020 Apr 10;712:136507. doi: 10.1016/j.scitotenv.2020.136507. Epub 2020 Jan 7.
China is experiencing one of the worst air quality problems in the world. China implemented the Air Pollution Prevention and Control Action Plan (APPCAP) and the air quality has recently achieved remarkable improvement.
To evaluate the associations of variations in annual fine particulate matter (PM) levels and changes in life expectancy in Chinese urban populations from 2013 to 2017.
We collected annual-average concentrations of PM and average life expectancy of urban residents in 214 cities from 2013 to 2017. We conducted a longitudinal panel analysis applying linear mixed-effect models to evaluate the association between PM reduction and life expectancy increase with and without adjustment for socioeconomic and medical-care confounders.
The nationwide-average annual PM concentrations decreased from 67.78 μg/m in 2013 to 45.25 μg/m in 2017; meanwhile, the average life expectancy of urban residents increased from 78.53 to 79.86 years. A decrease of 10 μg/m in PM was associated with an increment of 0.18 (95% confidence interval: 0.06, 0.30) year in life expectancy. After simultaneously adjusting for GDP per capita, smoking prevalence, urbanization rate and maternal mortality, the association turned to be insignificant at the national level, but remained significant in the eastern region with life expectancy gained 0.16 (95% CI: 0.04, 0.27) year per 10 μg/m reduction of PM.
Lower PM air pollution might be associated with extended life expectancy in east of China. The implementation of APPCAP during 2013 to 2017 might have resulted in benefits on life expectancy, especially in east of China.
中国正经历着世界上最严重的空气质量问题之一。中国实施了《大气污染防治行动计划》（APPCAP），空气质量最近取得了显著改善。
评估 2013 年至 2017 年中国城市人口中每年细颗粒物（PM）水平的变化与预期寿命变化之间的关联。
我们收集了 2013 年至 2017 年 214 个城市的 PM 年平均浓度和城市居民的平均预期寿命。我们采用线性混合效应模型进行纵向面板分析，评估在调整社会经济和医疗保健混杂因素前后，PM 减少与预期寿命增加之间的关联。
全国平均年 PM 浓度从 2013 年的 67.78μg/m 下降到 2017 年的 45.25μg/m；同时，城市居民的平均预期寿命从 78.53 岁增加到 79.86 岁。PM 减少 10μg/m 与预期寿命增加 0.18 岁（95%置信区间：0.06，0.30）相关。在同时调整人均 GDP、吸烟率、城市化率和孕产妇死亡率后，这种关联在全国范围内变得不显著，但在东部地区仍然显著，PM 每减少 10μg/m，预期寿命增加 0.16 岁（95%置信区间：0.04，0.27）。
较低的 PM 空气污染可能与中国东部地区预期寿命的延长有关。2013 年至 2017 年实施的《大气污染防治行动计划》可能对预期寿命产生了积极影响，特别是在中国东部地区。
