Figure 2

Comparison of the Cormack-Lehane grades of the two groups. group A: the patients were intubated with the Airtraq laryngoscope; group G: the patients were intubated with the GlideScope. Initial assessments of the laryngeal views (Cormack-Lehane grade I/II/III) were performed with the Macintosh laryngoscope (Macintosh) and subsequently with the Airtraq laryngoscope (Airtraq) or the GlideScope (GlideScope) in the corresponding groups. * significant compared with the initial Macintosh assessment within groups based on Kappa test (Kappa value = −0.53 in group A; −0.32 in group G); ^Δ significant difference in the assessments performed with the Airtraq laryngoscope and the GlideScope according to Mann–Whitney U test, P = 0.042 < 0.05.