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Table 4 ROC analysis for the prediction of impaired MVP

From: Usefulness of echocardiographic myocardial work in evaluating the microvascular perfusion in STEMI patients after revascularization

Parameters

Cut-off value

Sensitivity (%)

Specificity

Youden

AUC

95% CI

P

GWI (mmHg%)

1145

86.8

53.7

0.405

0.712

0.620–0.804

0.000

TNI (ng/ml)

30.0

73.1

52.4

0.255

0.643

0.556–0.729

0.003

TNI + GWI

 

76.1

66.0

0.421

0.755

0.670–0.841

0.000

LVEDVi (ml/m2)

56.5

55.2

67.2

0.224

0.633

0.545–0.721

0.004

LVEDVi + GWI

 

85.7

53.7

0.394

0.712

0.620–0.804

0.000

TIMI ≤ 2 + GWI

 

85.7

53.7

0.394

0.712

0.620–0.804

0.000

  1. AUC area under the curve, GLS global longitudinal strain, GWE global work efficiency, GWI global work index, LVEDVi left ventricular end-diastolic volume index, TIMI thrombolysis in myocardial infarction, TNI troponin I