Table 3 Demographics and clinical predictors of the easy and difficult laryngoscopy groups

Age (years)

52 ± 11

57 ± 10

0.031

Gender (male/female)

112(63)/ 66(37)

29(83)/ 6(17)

0.023

Height (cm)

167.0 ± 8.0

169.5 ± 7.5

0.082

Weight (kg)

69.9 ± 11.8

74.1 ± 9.4

0.045

BMI (kg/m²)

25.0 ± 3.5

25.7 ± 2.2

0.115

IIG (cm)

4.3 ± 0.6

3.9 ± 0.5

<0.001

TMD (cm)

9.0 ± 1.2

8.4 ± 1.5

0.012

NC (cm)

39.5 ± 4.1

41.9 ± 3.1

0.001

RNIIG

9.2 ± 1.5

11.0 ± 1.6

<0.001

RNTMD

4.4 ± 0.7

5.1 ± 0.9

<0.001

MMT (class I II/class III IV)

127(71)/51(29)

15(43)/ 20(57)

0.001