Comparison of unsuccessful intubations factors between the control group and the intervention group
| Control group (n=30) | Intervention group (n=15) | p Value | |
| Could not advance beyond the oral cavity, n (%) | 1 (3) | 1 (7) | 1.00 |
| Could not achieve an intubatable view (C-L 3–4), n (%) | 7 (23) | 2 (13) | 1.00 |
| Excessive secretions, n (%) | 2 (7) | 2 (13) | 0.85 |
| Oesophageal intubation, n (%) | 14 (47) | 5 (33) | 0.59 |
| Vocal cord not recognised, n (%) | 9 (30) | 1 (6) | 0.16 |
| Could not direct endotracheal, n (%) | 10 (33) | 9 (60) | 0.16 |
| Accidental extubation during strapping, n (%) | 1 (3) | 2 (14) | 1.00 |
Note: There may be overlap of numbers as there could be multiple factors responsible for each unsuccessful intubation.
C-L, Cormack-Lehane classification system.