Long-term exposure to outdoor fine particulate and physical activity with mortality and cardiovascular events: an analysis of the Prospective Urban Rural Epidemiology (PURE)-China cohort study

Background: Long-term exposure to PM2.5 and low physical activity are independently associated with an increased risk of cardiovascular disease (CVD). However, there is limited research investigating the combined effects of PM2.5 exposure and physical activity on CVD risk. This study aims to explore these interactions related to CVD and mortality. Methods: We analysed data from the PURE-China cohort, including 39,970 adults aged 35-70 years, …