Table 1. Demographic and Baseline Characteristics.
| Group C (n = 45) |
Group Kpre (n = 47) |
Group Kpost (n = 45) |
Group D (n = 43) |
P value | |
|---|---|---|---|---|---|
| Age (yr) | 48.2 ± 10.1 | 49.5 ± 9.2 | 47.3 ± 9.3 | 46.0 ±11.1 | 0.402 |
| Body Mass Index (kg/m2) | 24.1 ± 3.0 | 24.0 ± 3.0 | 24.8 ± 3.6 | 24.6 ± 3.2 | 0.577 |
| ASA PS | 0.141 | ||||
| I | 38 (84.4) | 42(89.4) | 32 (71.1) | 34 (79.1) | |
| II | 7 (15.6) | 5 (10.6) | 13 (28.9) | 9 (20.9) | |
| Denture | 2 (4.4) | 0 | 2 (4.4) | 1 (2.3) | 0.542 |
| Smoker | 1 (2.2) | 1 (2.1) | 0 | 0 | 1.000 |
| Cormack-Lehane Grade | 0.514 | ||||
| 1 | 42 (93.3) | 43 (91.5) | 40 (88.9) | 36 (83.7) | |
| 2 | 3 (6.7) | 4 (8.5) | 4 (8.9) | 7 (16.3) | |
| 3 | 0 | 0 | 1 (2.2) | 0 | |
| Intubation attempt > 2 | 1 (2.2) | 4 (8.5) | 3 (6.7) | 3 (7.0) | 0.656 |
| ID of ETT (mm) | 0.569 | ||||
| 7.0 | 9 (20.0) | 10 (21.3) | 10 (22.2) | 5 (11.6) | |
| 7.5 | 35 (80.0) | 37 (78.7) | 36 (77.8) | 38 (88.4) | |
| Bloodstain on ETT | 1 (2.2) | 4 (8.5) | 3 (6.7) | 1 (2.3) | 0.460 |
| Duration (min) | |||||
| Surgery | 95.6 ± 28.5 | 102.1 ±27.6 | 105.7 ± 30.8 | 100.4 ±37.4 | 0.485 |
| Anesthesia | 118 ± 28.5 | 125.3 ± 28.7 | 127.9 ± 30.8 | 124.9 ± 40.0 | 0.533 |
| Intubation | 111.7 ± 28.5 | 115.3 ± 32.5 | 120.9 ± 31.4 | 118.2 ± 38.1 | 0.581 |
| Recovery | 7.2 ± 3.6 | 6.8 ± 2.7 | 7.8 ± 3.3 | 7.3 ± 3.2 | 0.526 |
Data are presented as number of patients (%) or mean ± SD. ASA PS: American society of anesthesiologists physical status, Recovery: from end of surgery to extubation, ID: internal diameter, ETT: endotracheal tube.