Table 1 Baseline variables of the two groups of difficult and non-difficult laryngoscopy cases
Variable | Difficult (n = 10) | Non-difficult (n = 113) | p |
|---|---|---|---|
Mean ± SD / number (%) | |||
Age (year) | 69.2 ± 15.16 | 68.8 ± 17.4 | 0.4 |
Sex | 0.4 | ||
Male | 4 (40.0) | 60 (53.1) | |
Female | 6 (60.0) | 53 (46.9) | |
Neck circumflex (cm) | 43.73 ± 4.89 | 39.43 ± 4.52 | 0.005 |
Body Mass Index | 32.7 ± 5.56 | 24.67 ± 4.95 | 0.001 |
< 18.5 | 0 (0.0) | 6 (5.3) | |
18.5–24.9 | 2 (20.0) | 62 (54.9) | |
25–29.9 | 5 (50.0) | 40 (35.4) | |
≥ 30 | 3 (30.0) | 5 (4.4) | |
Cormack-Lehane classification | < 0.001 | ||
Grade 1 | 0 (0.0) | 69 (61.1) | |
Grade 2 | 0 (0.0) | 44 (38.9) | |
Grade 3 | 7 (70.0) | 0 (0.0) | |
Grade 4 | 3 (30.0) | 0 (0.0) | |