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- Title
Individual exposure to ambient PM<sub>2.5</sub> and hospital admissions for COPD in 110 hospitals: a case-crossover study in Guangzhou, China.
- Authors
Jin, Jie-Qi; Han, Dong; Tian, Qi; Chen, Zhao-Yue; Ye, Yun-Shao; Lin, Qiao-Xuan; Ou, Chun-Quan; Li, Li
- Abstract
Few studies have evaluated the short-term association between hospital admissions and individual exposure to ambient particulate matter (PM2.5). Particularly, no studies focused on hospital admissions for chronic obstructive pulmonary disease (COPD) at the individual level. We assessed the short-term effects of PM2.5 on hospitalization admissions for COPD in Guangzhou, China, during 2014–2015, based on satellite-derived estimates of ambient PM2.5 concentrations at a 1-km resolution near the residential address as individual-level exposure for each patient. Around 40,002 patients with COPD admitted to 110 hospitals were included in this study. A time-stratified case-crossover design with conditional logistic regression models was applied to assess the effects of PM2.5 based on a 1-km grid data of aerosol optical depth provided by the National Aeronautics and Space Administration on hospital admissions for COPD. Further, we performed stratified analyses by individual demographic characteristics and season of hospital admission. Around 10 μg/m3 increase in individual-level PM2.5 was associated with an increase of 1.6% (95% confidence interval [CI]: 0.6%, 2.7%) in hospitalization for COPD at a lag of 0–5 days. The impact of PM2.5 on hospitalization for COPD was greater significantly in males and patients admitted in summer. Our study strengthened the evidence for the adverse effect of PM2.5 based on satellite-based individual-level exposure data.
- Subjects
GUANGZHOU (China); UNITED States. National Aeronautics &; Space Administration; HOSPITAL admission &; discharge; CHRONIC obstructive pulmonary disease; HOSPITAL administration; HOSPITALS
- Publication
Environmental Science & Pollution Research, 2022, Vol 29, Issue 8, p11699
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-021-16539-x