Table 2.
Preoperative airway parameters and their distribution with difficult laryngoscopy and intubation among surgical patients in Tikur Anbessa Hospital from February 1 to March 30, 2016.
| Parameter | Frequency, n (%) | DL, n (%) | DI, n (%) |
|---|---|---|---|
| IID | |||
| <4 cm | 56 (23.1) | 17 (30.3) | 8 (14.3) |
| ≥4 cm | 186 (76.9) | 16 (8.6) | 4 (2.1) |
| MP | |||
| A | 175 (72.3) | 15 (8.5) | 7 (4) |
| B and C | 67 (27.7) | 18 (26.8) | 5 (7.4) |
| MMC | |||
| I and II | 214 (88.4) | 16 (7.5) | 5 (2.3) |
| III and IV | 28 (11.6) | 17 (60.7) | 7 (25) |
| TMD | |||
| <6 cm | 48 (19.8) | 17 (35.4) | 7 (14.5) |
| ≥6 cm | 194 (80.2) | 16 (8.2) | 5 (2.5) |
| SMD | |||
| <12 cm | 36 (14.9) | 10 (27.7) | 1 (2.7) |
| ≥12 cm | 206 (85.1) | 23 (11.1) | 11 (5.3) |
| CL | |||
| I and II | 209 (86.4) | 0 | 1 (0.47) |
| III and IV | 33 (13.6) | 33 (13.6) | 11 (33.3) |