Fig. 4From: Prevalence and impact of acute renal impairment on COVID-19: a systematic review and meta-analysisa Forest plot of average AKI incidence in all COVID-19 patients. b Forest plots of AKI log risk ratio between severe and non-severe patients. c Forest plots of AKI log risk ratio between survival and non-survival cases. Heterogeneity is defined based on the calculated I2 index, and random effect models are used to calculate the weightsBack to article page