Table 1 Patients’ characteristics
All patients n = 344 | CL grade 1 & 2 = easy laryngoscopy n = 255 | CL 3 & 4 = difficult laryngoscopy n = 89 | P -value |
|---|---|---|---|
Men [n (%)] | 104 (68%) | 49 (32%) | 0.025‡ |
Women [n (%)] | 151 (79.1%) | 40 (20.9%) | |
Age (yr) | 43.17 ± 15.26 | 51.13 ± 15.19* | < 0.001 |
Height (cm) | 162.86 ± 9.91 | 163.45 ± 8.99 | 0.786 |
Weight (Kg) | 62.80 ± 11.60 | 62.70 ± 9.42 | 0.764 |
Body mass index (kg/m2) | 23.60 ± 3.32 | 23.45 ± 2.75 | 0.784† |
ASA | |||
1 | 152(59.6%) | 31(34.8%) | |
2 | 97(38.0%) | 56(62.9%) | |
3 | 6(2.4%) | 2(2.2%) | |
Inter-Incisor distance (mm) | 45.45 ± 7.20 | 41.15 ± 6.07* | <.0001† |
Thyromental distance (mm) | 84.18 ± 15.30 | 78.98 ± 11.26* | 0.0002† |
Sternomental distance (mm) | 182.33 ± 22.38 | 173.83 ± 19.38* | 0.003† |