Figure 1.

Study profile. We described the study process in the picture. The included participants in this study were those who were confirmed or clinically diagnosed with COVID-19 from January 29 to February 25, 2020. Patients with end-stage renal disease, kidney transplantation, nephrectomy, or peak serum creatinine < 53 μmol/L were excluded. The diagnosis of AKI in this study was a rise of serum creatinine of 26.5 μmol/L from baseline within 48 hours or an increase in serum creatinine to 1.5 times baseline. In the end, we included 492 cases in this study. Next, we identified risk factors of AKI in patients with COVID-19 during hospital admission and then evaluated their outcome. COVID-19 = 2019 coronavirus disease; AKI = acute kidney injury.