Fig. 2.

a 30-day survival rate (adjusted Cox Hazards Model) for dialysis and kidney transplant patients with Covid-19 before matching. b 30-day Kaplan–Meier survival curves for dialysis and kidney transplant patients with Covid-19 after matching (sensitivity analysis). a The reference group was dialysis, and hazard ratio (HR) refers to transplant patients. The baseline HR refers to time zero and overtime refers to the daily risk. Estimates were obtained with Cox hazards models adjusted for age, diabetes, hypertension, cardiovascular disease, and chronic pulmonary disease; curves were constructed with the conditional method. b The Fleming–Harrington test was used to calculate the p value due to the non-proportionality of the risks