Fig. 1.

Kaplan-Meier survival curve for progression-free survival and overall survival for patients with serum creatinine elevation or proteinuria. (A) Progression-free survival for patients with or without serum creatinine elevation; (B) Overall survival for patients with or without serum creatinine elevation; (C) Progression-free survival for patients with or without proteinuria; (D) Overall survival for patients with or without proteinuria. Between-group difference was analysed using the log-rank test, and p-values were two-sided. Abbreviations: NE, not estimable; NR, not reached; CI, confidence interval