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Serum 25(OH)D level associated with hospitalization-free survival. (A) Kaplan–Meier estimates of hospitalization-free survival probability of predialysis patients in relation to serum 25(OH)D (mean) ≥11.8 ng/mL or <11.8 ng/mL. (B) Kaplan–Meier estimates of hospitalization-free survival probability of dialysis patients in relation to serum 25(OH)D ≥9.6 ng/mL (mean) or <9.6 ng/mL.
25(OH)D, 25-hydroxyvitamin D.
