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Table 2 Preoperative airway parameters and their distribution with difficult laryngoscopy among study participants

From: Predictive values of the modified Mallampati test, upper lip bite test, thyromental distance and ratio of height to thyromental distance to predict difficult laryngoscopy in pediatric elective surgical patients 5–12 years old at selected Addis Ababa governmental hospitals, Ethiopia: a multicenter cross-sectional study

Predictors

Frequency, n (%)

DL, n (%)

MMC

 I

47 (33.3)

0 (0)

 II

65 (46.1)

3 (2.13)

 III

29 (20.6)

19 (13.47)

 IV

0 (0)

0 (0)

TMD

  < 5 cm

19 (13.5)

8 (5.67)

  ≥ 5 cm

122 (86.5)

14 (9.93)

ULBT class

 I

40 (28.4)

1 (0.70)

 II

66 (46.8)

5 (3.55)

 III

34 (24.8)

16 (11.35)

RHTMD

  < 21.5

71 (50.4)

16 (11.35)

  ≥ 21.5

70 (49.6)

6 (4.25)

  1. n (%) number (percentage), DL Difficult laryngoscopy, MMC Modified Mallampati class, CLG Cormack and Lehane grade
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BMC Anesthesiology

ISSN: 1471-2253

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