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Table 2 The diagnostic sensitivity, specificity, positive predictive value and negative predictive value of the cut-off values of serum ionized calcium, magnesium and phosphorus for normal PTH levels at Pod7

From: Short-term recovery in patients suffering hypoparathyroid after thyroidectomy: a case control study

 

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

Pod7 Mg > 0.80 mmol/L

86.21

64.6

46.3

93

Pod7 P ≤ 1.51 mmol/L

82.76

59.76

42.1

90.7

Pod7 Ca > 2.05 mmol/L

93.10

46.34

46.2

84.9

Pod1 PTH > 5.18 pg/mL

79.31

62.20

42.6

89.5

Pod3 PTH > 5.60 pg/mL

75.86

71.95

48.9

89.4

Pod7 Mg and Pod7 P Combined diagnose

82.76

76.83

55.8

92.6

  1. PPV positive predictive value, NPV negative predictive value, Pod postoperative day