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Table 6 Diagnostic efficacy of abnormal fetal Doppler indices (umbilical artery, middle cerebral artery and cerebro-placental ratio) in predicting adverse neonatal outcome

From: Evaluating the predictive value of fetal Doppler indices and neonatal outcome in late-onset preeclampsia with severe features: a cross-sectional study in a resource-limited setting

Abnormal Doppler indices

Sensitivity (%)

Specificity (%)

Positive predictive value (PPV) (%)

Negative predictive value (NPV) (%)

Accuracy (%)

UA PI (> 95th percentile) N = 23

 - IUGR

57.9

70.7

48

78

66.7

 - 1- minute Apgar score

46.5

82.4

87

38

56.7

 - 5- minute Apgar score

59

73

57

76

68.3

 NICU Admission

60

68.9

39

84

66.7

 Overall

55.85

73.57

57.75

69

64.6

UA RI (> 95th percentile) N = 25

 - IUGR

68.4

70.7

52

83

70

 - 1- minute Apgar score

46.5

70.6

80

34

53.3

 - 5- minute Apgar score

32.6

35.3

56

17

33.3

 NICU Admission

60

64.4

36

83

63.3

 Overall

51.875

60.25

56

54.25

54.975

MCA PI (< 5th percentile) N = 22

 - IUGR

52.6

70.7

46

76

65

 - 1- minute Apgar score

73.7

80.5

64

87

78.3

 - 5- minute Apgar score

31.6

73.2

50

79

38.3

 NICU Admission

31.6

61

27

66

51.7

 Overall

47.375

71.35

46.75

77

58.325

MCA RI (< 5th percentile) N = 22

 - IUGR

52.6

70.7

46

76

65

 - 1- minute Apgar score

32.6

53

64

24

38.3

 - 5- minute Apgar score

25.6

35.3

50

16

28.3

 NICU Admission

14

47

40

18

23.3

 Overall

31.2

51.5

50

33.5

38.725

CPR indices (< 1) N = 31

 - IUGR

79

61

48

86

66.7

 - 1- minute Apgar score

58

64.7

81

38

60

 - 5- minute Apgar score

72.8

60.5

52

79

65

 NICU Admission

73.3

55.6

36

86

60

 Overall

70.775

60.45

54.25

72.25

62.925

  1. CPR Cerebroplacental ratio, IUGR Intra-uterine growth retardation, MCA Middle cerebral artery, NICU Neonatal intensive care unit, PI Pulsatility index, RI Resistance index, UA umbilical artery