Table 2 The incidence of each variables of modified LEMON (LEON) score and the correlation of each variables with the intubation difficulty
Variables | Overall | Group ND (n = 96) | Group D (n = 18) | Odds ratio | 95% Confidence interval | P |
|---|---|---|---|---|---|---|
Facial trauma, n (%) | 32 (28.1%) | 27 (281%) | 5 (27.8%) | 0.983 | 0.320–3.022 | 0.976 |
Large incisors, n (%) | 9 (7.9%) | 6 (6.2%) | 3 (16.7%) | 3.000 | 0.676–13.309 | 0.148 |
Beard or mustache, n (%) | 17 (14.9%) | 12 (12.5%) | 5 (27.8%) | 2.692 | 0.814–8.900 | 0.105 |
Large tongue, n (%) | 16 (14.0%) | 11 (11.5%) | 5 (27.8%) | 2.972 | 0.888–9.943 | 0.077 |
Inter-incisor distance < 3 FBs, n (%) | 49 (43.0%) | 39 (40.6%) | 10 (55.6%) | 1.827 | 0.662–5.041 | 0.245 |
Hyoid-to-mental distance < 3 FBs, n (%) | 33 (28.9%) | 28 (29.2%) | 5 (27.8%) | 0.934 | 0.304–2.867 | 0.905 |
Thyroid-to-hyoid distance < 2 FBs, n (%) | 48 (42.1%) | 39 (40.6%) | 9 (50.0%) | 1.462 | 0.533–4.012 | 0.461 |
Obstruction signs, n (%) | 30 (26.3%) | 22 (22.9%) | 8 (44.4%) | 2.691 | 0.947–7.647 | 0.063 |
Limited neck mobility, n (%) | 16 (14.0%) | 9 (9.4%) | 7 (38.9%)a | 6.152 | 1.909–19.821 | 0.002 |