PTH and hyperphosphatemia: In bivariate analysis, risk factors for hyperphosphatemia included higher levels of albumin (p < 0.01), higher vitamin D (p = 0.01), lower parathyroid hormone (p = 0.02), higher corrected calcium (< 0.01), lower fasting glucose (< 0.01) and lower hemoglobin levels (p = 0.03) (Table 1).