1. Supplemental Figure 2A. Time-varying all-cause mortality hazard ratios (and 95% confidence interval error bars) across pre-specified subgroups of Age (<65, ≥65 years), Sex (Male, Female), Race (Caucasian, Other), and Dialysis Dose (spKt/V: <1.2, ≥1.2) using the case-mix model

2. Supplemental Figure 2B. Time-varying all-cause mortality hazard ratios (and 95% confidence interval error bars) across pre-specified subgroups of Comorbidties (Yes, No): Hypertension (HTN), Diabetes, and Congestive Heart Failure (CHF), and body mass index (BMI: <30, ≥30 kg/m 2 ) using the case-mix model.

3. Supplemental Figure 2C. Time-varying all-cause mortality hazard ratios (and 95% confidence interval error bars) across pre-specified subgroups of Hemoglobin (Hb: <10, ≥10 g/dl), Ferritin (<300, ≥300 ng/ml), Alkaline Phosphatase (ALP: <90, ≥90 IU/l), and Albumin (Alb: <3.5, ≥3.5 g/dl) using the case-mix model.

4. Supplemental Figure 2D. Time-varying all-cause mortality hazard ratios (and 95% confidence interval error bars) across pre-specified subgroups of intact Parathyroid Hormone (iPTH: <300, ≥300 pg/ml) using the case- mix model.