Table 2 Results of ROC curves of arterial and venous blood lactate indices predicting the occurrence of cardiac arrest in patients in the emergency room.

From: Bland–Altman plot to assess the consistency of arterial and venous blood lactate in the emergency room: a retrospective cohort study

Characteristic

AUC

Cut-off

Youden index

Sensitivity%

Specificity%

P

95%CI

Arterial blood lactate (mmol/L)

0.876

> 2.8

0.6528

77.08

85.50

< 0.001

0.851 ~ 0.899

Venous blood lactate (mmol/L)

0.863

> 3.2

0.6077

75.52

85.25

< 0.001

0.837 ~ 0.886

  1. AUC was the area under the receiver operator characteristic curve; the Cut-off value is the best.