Figure 4. Median time to intubation for all participants per attempt trial.

Interquartile ranges (IQR) are displayed as whiskers. For all participants, intubation attempts 1 through 5 were without the aerosol box, followed by attempts 6 through 10 without the aerosol box. All intubation attempts were completed on the first attempt without any complications. A pattern for continuous improvement in times with increasing attempts suggests the presence of a learning curve.