Laryngeal inlet views (Cormack-Lehane equivalent) and number of intubation attempts according to device used
| Direct Laryngoscopy | Videolaryngoscopy | |
| Total intubations | 424 | 538 |
| Laryngeal view (Cormack-Lehane) | ||
| 1 | 240 (57%) | 349 (65%) |
| 2 | 114 (27%) | 114 (21%) |
| 3 | 40 (9%) | 34 (6%) |
| 4 | 13 (3%) | 21 (4%) |
| Not recorded | 16 (4%) | 20 (4%) |
| No of intubation attempts | ||
| 1 | 352 (83%) | 422 (78%) |
| 2 | 50 (12%) | 89 (17%) |
| 3 | 8 (2%) | 14 (3%) |
| 4 | 3 (1%) | 1 (<1%) |
| Not recorded | 10 (2%) | 12 (2%) |