Grade of View
The Dedo-PillingĀ® laryngoscope was used exclusively in 90.7% procedures. The median anesthetic view was grade 2a (IQR 1-2b), whilst median surgical view was grade 1 (IQR 1-2, p<0.0001). There was no significant correlation between the seniority of surgeon and the view eventually obtained, although this may have been confounded by more senior surgeons needing to take over in difficult cases. BMI and patient-demonstrated limitations to chin and neck movement were all significantly positively correlated with each other, and each also had mild significantly positive correlations with higher grade (i.e. more difficult) views (Figure 2). Neck extension was also negatively correlated with interincisor gap (r=-0.268, p=0.001).