Table 6 The sensitivity and specificity of gestational age alone and its combination with fetal HbH disease in the prediction of an Apgar score < 7 at 1 or 5 min among thalassemic women.

From: Pregnancy outcomes in women affected by fetal alpha-thalassemia: a case control study

State variable

Test variable

Cutoff value

Sensitivity (%)

Specificity (%)

P

AUC

95% CI

Apgar score < 7 at 1 min

X1* (week)

38

70.59

52.97

0.013

0.692

0.655–0.727

X2

76.47

70.47

< 0.001

0.760

0.725–0.792

Apgar score < 7 at 5 min

X1* (week)

37

55.56

80.56

0.068

0.708

0.672–0.743

X2

77.78

71.45

0.020

0.769

0.735–0.801

  1. AUC, area under the curve. *Gestational age. Fetus with HbH disease + Gestational age.