Why the study?
China faces the dual challenge of high air pollution and an increasing cardiovascular disease burden, but the economic and quality-adjusted life year impacts under improved air quality scenarios were unclear.
Does improved air quality (lower PM2.5 levels) improve cardiovascular health outcomes and reduce economic costs in Chinese adults aged 45-85?
Population
Individuals aged 45-85 in China
Comparison
China national PM2.5 target (35 µg/m³) vs WHO PM2.5 guideline (5 µg/m³) vs 2015 PM2.5 levels
Design
Modelling study
Follow-up
10-year
Authors
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Strengthens case for WHO PM2.5 targets in China; extends risk-curve data with national CVD, cost, and QALY projections.
Does improved air quality (lower PM2.5 levels) improve cardiovascular health outcomes and reduce economic costs in Chinese adults aged 45-85?
Achieving the WHO recommended PM2.5 target of 5 µg/m³ in China could yield over threefold greater cardiovascular health and economic benefits compared to the national standard of 35 µg/m³.
Wang et al. (2024) studied Cardiovascular disease. Improved air quality (PM2.5 reduction) vs. 2015 PM2.5 levels was evaluated on 10-year estimates of ischaemic stroke and coronary heart disease-related healthcare expenditures and QALYs. Achieving the WHO PM2.5 guideline of 5 µg/m³ in China could decrease 10-year CVD events to 24.18 million, saving US$30.10 billion and gaining 11.29 million QALYs compared to 2015 levels.
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