Fig 1. Quality of predialysis care by the pre-end-stage renal disease.

Pay-for-performance (P4P) Program Enrolment. Frequency of estimated glomerular filtration rate (eGFR) monitoring and chronic kidney disease complications survey one year before dialysis were compared between the P4P and Non-P4P groups, and *P <0.001 were showed according to the Wilcoxon rank-sum test. “┬” and “┴” represent as 75 and 25 percentiles, respectively.