Table 1 Baseline patient and clinical characteristics
Easy laryngoscopic exposure( n = 1070 ) | Difficult laryngoscopic exposure( n = 50 ) | P-value | |
|---|---|---|---|
Age (years) | 51.24 ± 12.27 | 58.19 ± 10.20 | 0.02* |
Gender (Male/Female) | 493/577 | 26/24 | 0.05 |
BMI (kg/m2) | 23.44 ± 2.80 | 26.16 ± 2.63 | 0.00* |
ASA physical status (I/II/III) | 0/751/319 | 0/33/17 | 0.32 |
Current cigarette smoking (Yes/No) | 375/695 | 19/31 | 0.63 |
Current alcohol drinking (Yes/No) | 167/903 | 9/41 | 0.78 |
Hypertension (Yes/No) | 321/749 | 32/18 | 0.02* |
Diabetes mellitus (Yes/No) | 326/744 | 12/38 | 0.08 |
Hemoglobin ( g·dL− 1) | 13.20 ± 3.23 | 14.32 ± 5.71 | 0.76 |
Creatinine (mg·dL− 1) | 0.73 ± 0.11 | 0.78 ± 0.16 | 0.38 |
Urea nitrogen (mg·dL− 1) | 11.50 ± 3.23 | 12.20 ± 3.23 | 0.69 |
Alanine aminotransferase (U·L − 1) | 30.20 ± 9.23 | 38.20 ± 5.46 | 0.28 |
Aspartate aminotransferase (U·L − 1) | 35.20 ± 6.23 | 37.20 ± 4.14 | 0.75 |
SpO 2 in room air (%) | 97(94 ~ 99) | 97(93 ~ 98) | 0.30 |