Table 1 Demographic characteristics of patients
Characteristics of patients | SP (n = 25) | NP (n = 25) | EP (n = 25) | P-value |
|---|---|---|---|---|
Age (years) | 50.8 ± 13.2 | 51.0 ± 11.1 | 53.9 ± 10.3 | 0.58 |
Gender (M/F, n) | 11/ 14 | 14/11 | 13/12 | 0.68 |
ASA (I/II, n) | 15/10 | 12/13 | 14/11 | 0.32 |
Weight (kg) | 68.9 ± 16.2 | 70.7 ± 9.9 | 70.5 ± 11.9 | 0.87 |
Height (cm) | 165.1 ± 9.0 | 166.9 ± 6.8 | 167.4 ± 7.8 | 0.58 |
BMI (kg/m2) | 25.1 ± 4.2 | 25.4 ± 3.3 | 25.1 ± 3.4 | 0.95 |
Thyromental distance (cm) | 5.1 ± 0.6 | 5.5 ± 0.5 | 5.2 ± 0.9 | 0.26 |
Mouth opening (cm) | 4.5 ± 0.9 | 4.4 ± 1.5 | 4.2 ± 1.1 | 0.73 |
Mallampati class (3 /4, n) | 12/13 | 9/16 | 11/14 | 0.68 |
Degree of neck extension | 0.49 | |||
> 90°(n) | 21 | 24 | 23 | |
≤ 90°(n) | 4 | 1 | 2 |