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Κυριακή 3 Ιουλίου 2022

Habitual Exercise, Air Pollution, and Pneumonia Mortality: A Longitudinal Cohort Study of Approximately 0.4 Million Adults

alexandrossfakianakis shared this article with you from Inoreader
Abstract
This study aims to examine the combined associations of PM2.5 and exercise with deaths from pneumonia. We included 384,130 participants with an age of ≥18 years from Taiwan during 2001-2016. The adults were followed up until 31 May 2019 to obtain the vital status. We performed a time-dependent Cox regression model for statistical analysis. We found that the risk of pneumonia mortality reduced 55% [hazard ratio (HR): 0.45 (95% confidence intervals, CI: 0.36–0.55)] and 36% [0.64 (95%CI: 0.52–0.80)] in participants who took high-/moderate-level of exercise, respectively, as compared to the inactive. By contrast, every 10μg/m3 increase in chronic exposure to PM2.5 was associated with a 30% [1.30 (95%CI: 1.17–1.45)] higher risk of pneumonia mortality. The risk of pneumonia mortality decreased 72% (95%CI: 59%–80%) for the adults who took high-level exercise and simultaneously exposed to low-level PM2.5. A lower risk of pneumonia mortality was associated with both higher exercise and lower PM2.5 air pollution. For adults exposed to different levels of PM2.5, exercise benefits remained. Our findings suggest taking exercise is a safe and effective strategy to alleviate the burden of pneumonia mortality even for people who reside in a moderately-polluted area.
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