Fig. 2: National estimates of the relations between landscape fire and other-source PM2.5 levels (per 1-μg/m3) and cardiovascular outcomes at differing lags.

Points represent the estimated change in cardiovascular admissions. Vertical lines represent the 95% confidence interval. The sample size used to estimate these changes consisted of 8834533 hospital admissions for cardiovascular causes across 184 Chinese cities. Source data are provided as a Source Data file.