Table 1 Characteristics of the patients in the two groups
FMV (n = 98) | HFNO (n = 99) | P-value | ||
|---|---|---|---|---|
Age (years) | 51.47 ± 15.6 | 48.74 ± 17.4 | 0.248 | |
Sex: male | 49 (50.0%) | 67 (67.7%) | 0.017 | |
Height (cm) | 164.69 ± 9.5 | 167.53 ± 8.3 | 0.027 | |
Weight (kg) | 66.53 ± 12.3 | 67.45 ± 11.2 | 0.583 | |
BMI (kg/m2) | 24.38 ± 3.3 | 23.94 ± 3.2 | 0.332 | |
American Society of Anaesthesiologists physical class | 1 | 34 (34.7%) | 49 (49.5%) | 0.078 |
2 | 48 (49.0%) | 34 (34.3%) | ||
3 | 16 (16.3%) | 16 (16.2%) | ||
Obstructive sleep apnoea | 3 (3.1%) | 0 (0.0%) | 0.241 | |
Snoring | 58 (59.2%) | 55 (55.6%) | 0.711 | |
Modified Mallampati score | 1 | 59 (60.2%) | 60 (60.6%) | 0.998 |
2 | 31 (31.6%) | 31 (31.3%) | ||
3 | 8 (8.2%) | 8 (8.1%) | ||
4 | 0 (0.0%) | 0 (0.0%) | ||
Interincisor distance (cm) | 4.25 ± 0.6 | 4.13 ± 0.6 | 0.159 | |
Hyomental distance (cm) | 4.72 ± 0.8 | 4.76 ± 0.8 | 0.654 | |
Head and neck movement | Normal | 97 (99.0%) | 98 (99.0%) | 1.000 |
Limited | 1 (1.0%) | 1 (1.0%) | ||
Upper lip bite testa score | I | 96 (98.0%) | 98 (99.0%) | 0.993 |
II | 2 (2.0%) | 1 (1.0%) | ||
III | 0 (0.0%) | 0 (0.0%) |