Fig. 4.

Relative risk of death among renal replacement of therapy groups in overall patients by 12-month interval. Each relative risk is plotted against the endpoint of the follow-up interval to which it pertains. The relative risk among renal replacement therapy was not proportional over time, especially between hemodialysis (HD) and peritoneal dialysis (PD). The relative risk of HD was similar or higher than that of PD group for the first 12 months, but it became lower than that of PD at later period.