Effects of Air Quality Index and meteorological factors on cardiovascular and cerebrovascular mortality in Huizhou, China
A time-series analysis using distributed lag nonlinear models
Bibliographic Data
Background: Air pollution exposure is recognized to exacerbate cardiovascular and cerebrovascular diseases (CVDs). This study investigated the association between the Air Quality Index (AQI) and CVD mortality in Huizhou, China, focusing on population-specific lag effects and interactions with meteorological factors. Methods: Daily CVD mortality data (2015-2021) from Huizhou were analyzed using distributed lag nonlinear models (DLNMs) and generalized additive models (GAMs) to assess AQI's relationship with mortality, with subgroup analyses by gender and age. Poisson regression, based on interaction theory, clarified joint effects of AQI and meteorological factors. Results: AQI ≥ 80 was associated with increased CVD mortality risk with lag effects. Cumulative lag peaks varied: total population (2 days, RR = 1.00156, 95% CI: 1.00077-1.00235), males (3 days, RR = 1.00188), females (1 day, RR = 1.00130), ≥65 years (1 day, RR = 1.00098), and 65 years (3 days, RR = 1.00455). Mean wind speed showed an antagonistic interaction with AQI (IRR = 0.92749, 95% CI: 0.89575-0.96035), reducing risk, while mean humidity had a synergistic effect (IRR = 1.05124, 95% CI: 1.01395-1.08989), exacerbating risk. Conclusion: AQI is positively associated with CVD mortality, with lag effects differing by population. Wind speed mitigates, and humidity amplifies, AQI-related risks. These findings support targeted early warning systems and preventive strategies for CVDs
Air quality index · Distributed lag · Humidity · Lag · Lag time · Nonlinear system · Wind speed · Air Quality and Health Impacts · Air Quality Monitoring and Forecasting · Climate Change and Health Impacts
Particulate Matter Air Pollution and Cardiovascular Disease
The impact of meteorological conditions on cardiovascular and cerebrovascular diseases in different microclimatic zones of low-latitude mountainous areas
Understanding the Spatial-Temporal Patterns and Influential Factors on Air Quality Index
Effects of physical exercise on cardio-respiratory health of young adults during short-term exposure to varying air pollution levels
The impact of meteorological conditions on Air Quality Index under different urbanization gradients
Changing air pollution and CO2 emissions during the Covid-19 pandemic
| Citation velocity | historical |
|---|---|
| Highly cited | No |