Urban-rural disparity of the short-term association of PM2.5 with mortality and its attributable burden

The Innovation

Haorong Meng¹  Weiwei Gong²  Haoming Zhang²  Letao Yuan²  Wenjun Ma³  Zuhua Rong⁴  Jianpeng Xiao⁴  Min Yu⁴  Cunrui Huang⁴  Xing Li⁴  Weilin Zeng⁴  Siqi Chen⁴  Guanhao He⁴  Xiaojun Xu⁵  Lifeng Lin⁵  Yanjun Xu⁵  Tao Liu⁶  Mingfang Qin⁷  Yaodong Du⁷  Biao Huang⁸  Ruying Hu⁸  Qinglong Zhao⁸  Zhulin Hou⁹  Jianxiong Hu⁹  Yize Xiao⁹ 

[1] Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China;Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China;Guangdong Provincial Climate Center, Guangzhou 510080, China;Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China;Health Hazard Factors Control Department, Jilin Provincial Center for Disease Control and Prevention, Changchun 130062, China;School of Medicine, Jinan University, Guangzhou 510632, China;School of Public Health, Sun Yat-sen University, Guangzhou 510080, China;Yunnan Provincial Center for Disease Control and Prevention, Kunming 650022, China;Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China;

关键词: fine particulate matter;    mortality;    urban-rural disparity;    China;   

DOI  :  

来源: DOAJ

【 摘 要 】

Although studies have investigated the associations between PM2.5 and mortality risk, evidence from rural areas is scarce. We aimed to compare the PM2.5-mortality associations between urban cities and rural areas in China. Daily mortality and air pollution data were collected from 215 locations during 2014–2017 in China. A two-stage approach was employed to estimate the location-specific and combined cumulative associations between short-term exposure to PM2.5 (lag 0–3 days) and mortality risks. The excess risks (ER) of all-cause, respiratory disease (RESP), cardiovascular disease (CVD), and cerebrovascular disease (CED) mortality for each 10 μg/m3 increment in PM2.5 across all locations were 0.54% (95% confidence interval [CI]: 0.38%, 0.70%), 0.51% (0.10%, 0.93%), 0.74% (0.50%, 0.97%), and 0.52% (0.20%, 0.83%), respectively. Slightly stronger associations for CVD (0.80% versus 0.60%) and CED (0.61% versus 0.26%) mortality were observed in urban cities than in rural areas, and slightly greater associations for RESP mortality (0.51% versus 0.43%) were found in rural areas than in urban cities. A mean of 2.11% (attributable fraction [AF], 95% CI: 1.48%, 2.76%) of all-cause mortality was attributable to PM2.5 exposure in China, with a larger AF in urban cities (2.89% [2.12%, 3.67%]) than in rural areas (0.61% [−0.60%, 1.84%]). Disparities in PM2.5-mortality associations between urban cities and rural areas were also found in some subgroups classified by sex and age. This study provided robust evidence on the associations of PM2.5 with mortality risks in China and demonstrated urban-rural disparities of PM2.5-mortality associations for various causes of death.

【 授权许可】

Unknown