Table 2 Patient characteristics
Direct laryngoscope (n = 181) | Video laryngoscope (n = 179) | P | |
|---|---|---|---|
Patient characteristic | |||
Male/female | 31 (17.1)/150 (82.9) | 39 (21.8)/140 (78.2) | 0.264 |
Age (y) | 41.7 ± 10.2 | 40.7 ± 10.9 | 0.313 |
Height (cm) | 159.7 ± 6.6 | 159.8 ± 7.5 | 0.731 |
Weight (kg) | 61.0 ± 10.6 | 59.7 ± 10.7 | 0.309 |
Body mass index (kg/m2) | 23.9 ± 3.5 | 23.3 ± 3.3 | 0.158 |
ASA classification | |||
I | 87 (48.1) | 87 (48.6) | 0.919 |
II | 94 (51.9) | 92 (51.4) | 0.919 |
DMV risk factors | 100 (55.2)/81 (44.8) | 94 (52.5)/85 (47.5) | 0.603 |
Mallampati | |||
1 | 40 (22.1) | 49 (27.4) | 0.246 |
2 | 128 (70.7) | 117 (65.4) | 0.276 |
3 | 13 (7.2) | 13 (7.3) | 0.977 |
Anatomical parameters | |||
Mouth opening (cm) | 4.0 ± 0.6 | 4.0 ± 0.5 | 0.707 |
Thyromental distance (cm) | 8.6 ± 1.3 | 8.5 ± 1.1 | 0.342 |
Sternomental distance (cm) | 15.1 ± 2.0 | 15.0 ± 1.9 | 0.717 |
Type of surgery | |||
Gynecology | 76 (42.0) | 72 (40.2) | 0.734 |
Hepatobiliary | 100 (55.2) | 100 (55.9) | 0.906 |
Urology | 2 (1.1) | 1 (0.6) | 1 |
Gastrointestinal | 3 (1.7) | 6 (3.4) | 0.489 |
Surgical position | |||
Low head and high foot | 71 (39.2) | 66 (36.9) | 0.645 |
High head and low foot | 101 (55.8) | 102 (57.0) | 0.821 |
Supine position | 9 (5.0) | 10 (5.6) | 0.794 |
Side position | 0 | 1 (0.6) | 0.497 |
Surgical site | |||
Upper abdomen | 100 (55.2) | 100 (55.9) | 0.906 |
Midsection | 2 (1.1) | 1 (0.6) | 1 |
Lower abdomen | 79 (43.6) | 78 (43.6) | 0.989 |
Operation time (min) | 80.5 ± 53.3 | 88.4 ± 73.1 | 0.724 |