Table 3 : Demographics and ENLs of study population by gender.


  All Subjects
(n=200)
Females
(n=100)
Males
(n=100)
P-Value

Age (yr) 48.1±17.4 45.9±17.1 50.4±17.4   0.070
Height (cm) 169.4±7.7 164.0±5.5 174.9±5.5 <0.0001
Weight (kg) 71.0±11.8 64.4±9.6 77.6±9.9 <0.0001
Thyromental Distance
(TMD, cm)
6.8±1.1 6.7±1.2 7.0±1.1   0.051
Hyoid  to Cricoid Cartilage Distance
(HCD, cm)
6.2±1.4 6.0±1.3 6.5±1.4 <0.01
Sternomental Distance
(SMD, cm)
16.0±2.0 15.8± 1.8 16.1±2.1   0.20
Thyroid Cricoid Distance
(TCD, cm)
5.0±0.8 4.9±0.8 5.2±0.8   0.046
Thyroid Width
(TW, cm)
5.1±0.8 4.9±0.8 5.3±0.7 <0.0001
Thyroid Height
(TH, cm)
3.5±0.8 3.4±0.8 3.6±0.7   0.12
Hyoid mental Distance
(HMD, cm)
3.9±0.9 3.9±1.0 3.9±0.9   0.71
Occipital process to C7 Distance
(OCD, cm)
7.7±1.6 7.4±1.6 7.9±1.7   0.023

*P-values are obtained by two sample t-test by comparing demographics and ENLs between
females and males.

Cattano et al.Journal of Anesthesiology and Clinical Science  2014 3:7DOI : 10.7243/2049-9752-3-7