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Ain-Shams Journal of Anesthesiology

Table 3 Validity index of different airway assessment tests for predicting difficult laryngoscopy

From: Evaluation of thyromental height test as a single anatomical measure for prediction of difficult laryngoscopy: a prospective observational study

Tests

Sensitivity (%)

Specificity (%)

PPV (%)

NPP(%)

Accuracy (%)

Significance

TMHT

76.92

98.38

90.90

95.31

94.67

0.0001

MMPG

46.15

95.16

66.67

89.39

86.67

0.0001

ULBT

38.46

98.38

83.33

88.40

86.67

0.0001

IIG

34.62

97.58

75

87.68

86.67

0.0001

TMD

26.92

91.13

38.88

85.60

80

0.010

SMD

38.46

75.81

25

85.45

69.33

0.135

  1. TMHT Thyromental height test, MMPG Modified Mallampati test, ULBT Upper lip bite test, IIG Inter incisior gap, TMD Thyromental distance, SMD Sternomental distance, CL Cormack-Lehane, PPV Positive predictive value, NPV Negative predictive value
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