Fig. 3: Pooled relative risks of all-cause, cardiovascular, and respiratory mortality (stratified by sex and age groups) associated with a 10 µg/m3 increase in wildfire-related PM2.5 over lag 0‒14 days.
From: Short-term exposure to wildfire-related PM2.5 increases mortality risks and burdens in Brazil

(Note 1: *p value for the differences in cumulative relative risks (with 95% CI) across population subgroups were estimated by fixed effect meta-regression. Note 2: black error bars correspond to 95% confidence intervals, center for the error bars correspond to points estimate of RRs. Note 3: cause-, age- and sex-specific estimates were derived from the main model with data in 510 immediate regions. Estimates were pooled for each region, i.e., n = 62 in North, n = 154 in Northeast, n = 53 in Central West, n = 145 in Southeast, and n = 96 in South. Note 4: PM2.5, fine particulate matter with diameter ≤2.5 μm.).