Total laryngoscopy time
| Time by blade size (manufacturers combined) | Seconds Median (IQR) | p Value |
| All participants (n=55) | ||
| Size-0 | 23.7 (15.4, 46.7) | 0.92 |
| Size-00 | 20.6 (16.0, 36.0) | |
| Participants preferring size-0 (n=17) | ||
| Size-0 | 28.3 (16.7, 46.4) | 0.89 |
| Size-00 | 21.0 (16.3, 45.0) | |
| Participants preferring size-00 (n=31) | ||
| Size-0 | 23.4 (14.3, 46.7) | 0.95 |
| Size-00 | 20.6 (16.1, 46.4) | |
| Time by blade size (individual blades) | ||
| Size-0 (WA) | 22.3 (16.4, 26.9) | 0.02* |
| Size-0 (RT) | 19.1 (12.1, 26.9) | |
| Size-00 (WA) | 18.9 (12.5, 31.8) | |
| Size-00 (RT) | 18.1 (12.9, 31.5) | |
| Time by trial number | ||
| First blade trial | 26.9 (19.5, 62.9) | <0.001† |
| Second blade trial | 18.6 (14.6, 30.3) | |
| Third blade trial | 17.8 (13.2, 28.1) | |
| Fourth blade trial | 15.3 (10.9, 28.7) |
*Size-0 (WA) vs all other blades.
†First blade trial vs all other blade trials.
RT, Rusch-Teleflex; WA, Welch-Allyn.