Fig. 2From: Short-term effects of rainfall on childhood hand, foot and mouth disease and related spatial heterogeneity: evidence from 143 cities in mainland ChinaCity-specific and overall pooled estimates of exposure-response curves between rainfall and HFMD. Stripes in the bottom represented the density of the rainfall data. ERR represents the excessive risk ratio (ERR, %), which was calculated by the transformation of risk ratio, i.e., (RR-1) × 100%Back to article page