Interincisor gap (cm)

Tthyromental distance (cm)

Sternomental distance (cm)  

Ratio of height to thromental distance (cm)

Neck circumferance (cm)

Number of patients

94

97

97

97

99

Minimum

2.0

3.0

8

10.70

21

Maximum

5.0

10.0

17

30.00

31

Mean

3.613

5.119

10.57

18.6148

24.29

Std. Deviation

0.66

0.93

1.5

3.12

1.83

Table 2: Parameters for airway assessment.