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Table 4 Results of ROC curve analysis

From: Risk factors for sub–therapeutic serum concentrations of magnesium sulfate in severe preeclampsia of Chinese patients

Variables

Area under ROC curve

Youden index

Cut-off

Sensitivity/%

Specificity/%

Ccr

0.715

0.409

≥ 133(mL/min)

75.0

65.9

Measurement time

0.650

0.323

≤2.375(h)

70.7

61.5

  1. Ccr Creatinine clearance, ROC Receiver operating characteristic