Fig. 4From: Association between air pollution in Lima and the high incidence of COVID-19: findings from a post hoc analysisThe association between PM2.5 (μg/m3) and age (years). A Age at COVID-19 diagnosis, B age at death due to COVID-19, and C age at death/age at confirmation of COVID-19 in 24 districts of Metropolitan Lima. The population of the district was ascertained from the values reported in the census of 2017. This number was not corrected based on the estimation of growthBack to article page