Table 4.
Proportion of successful intubations with specific difficult airway characteristics.
| DAC | C-MAC, % (n=255) | 95% CI* | DL, % (n=495) | 95% CI* |
|---|---|---|---|---|
| Airway edema | 85.7 (6/7) | 42.1–99.6 | 46.2 (6/13) | 19.2–74.9 |
| Blood in airway | 93.4 (57/61) | 84.1–98.2 | 82.2 (88/107) | 73.7–89.0 |
| Cervical immobility | 98.8 (82/83) | 93.5–100 | 83.1 (103/124) | 75.3–89.2 |
| Facial/neck trauma | 95.3 (41/43) | 84.2–99.4 | 87.8 (43/49) | 75.2–95.4 |
| Large tongue | 90.5 (19/21) | 69.6–98.8 | 75.0 (33/44) | 59.7–86.8 |
| Obesity | 93.8 (30/32) | 79.2–99.2 | 78.1 (57/73) | 66.9–86.9 |
| Short neck | 92.9 (26/28) | 76.5–99.1 | 66.0 (33/50) | 51.2–78.8 |
| Small mandible | 100 (5/5) | 47.8–100 | 72.2 (13/18) | 46.5–90.3 |
| Vomit in airway | 93.6 (44/47) | 82.5–98.7 | 73.2 (52/71) | 61.4–83.1 |
*
Ninety-five percent CIs calculated with the “exact” method.