Table 2.
Preoperative airway parameters and their distribution with difficult laryngoscopy among study participants
| Predictors | Frequency, n (%) | DL, n (%) |
|---|---|---|
| MMC | ||
| I | 47 (33.3) | 0 (0) |
| II | 65 (46.1) | 3 (2.13) |
| III | 29 (20.6) | 19 (13.47) |
| IV | 0 (0) | 0 (0) |
| TMD | ||
| < 5 cm | 19 (13.5) | 8 (5.67) |
| ≥ 5 cm | 122 (86.5) | 14 (9.93) |
| ULBT class | ||
| I | 40 (28.4) | 1 (0.70) |
| II | 66 (46.8) | 5 (3.55) |
| III | 34 (24.8) | 16 (11.35) |
| RHTMD | ||
| < 21.5 | 71 (50.4) | 16 (11.35) |
| ≥ 21.5 | 70 (49.6) | 6 (4.25) |
n (%) number (percentage), DL Difficult laryngoscopy, MMC Modified Mallampati class, CLG Cormack and Lehane grade