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Adjusted ratio of varied levels of serum iPTH, 25(OH)D, oral vitamin D analogs for risk of MS. All models are adjusted for age, gender, body mass index, dialysis duration, serum calcium, phosphorus, albumin and C-reactive protein, hemoglobin, total Kt/V urea and residual renal function. iPTH = intact parathyroid hormone; 25(OH)D = 25-hydroxyvitaminD; CI = confidence interval.
