A. Hazard ratios for time to death in the lower tertiles of 25-hydroxy vitamin D (25-OH vitamin D) concentrations. B. Hazard ratios for time to first hospitalization in the lower tertiles of 25-OH vitamin D concentrations. The reported hazard ratios are in comparison with the highest tertile (≥25-OH vitamin D concentrations >15.5 ng/mL). The error bars represent 95% confidence intervals; P value for trend for the multivariable adjusted model in panel A = .0375, in panel B = .0017. †Adjusted for age, gender, race, body mass index, diabetes, treatment modality (hemodialysis vs. peritoneal dialysis), and facility.