Short-Term Exposure to Fine Particulate Matter (PM_2.5), Cause Specific-Mortality, and High-Risk Populations: A Nationwide Time-Stratified Case-Crossover Study.

ABSTRACT: Numerous studies have reported that short-term exposure to fine particulate matter (PM_2.5) is associated with mortality risk; however, results on high-risk populations and regions have been mixed. This study performed a nationwide time-stratified case-crossover study to assess the association between short-term PM_2.5 and mortality in South Korea (2015-2019) by each cause of death and age group. A machine-learning ensemble PM_2.5 prediction model was used to cover unmonitored districts. We estimated the excess mortality and Years of Life Lost (YLL) attributable to PM_2.5 and non-compliance with the 2021 WHO guidelines (>15 μg/m³). We examined the effect modifications by district-level accessibility to green spaces and medical facilities i

SUBMITTER: Ahn S 

PROVIDER: S-EPMC12474854 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature