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Table 1 Outcomes using the Macintosh, i-view, and C-MAC laryngoscopes for tracheal intubation in the aerosol box

From: Macintosh laryngoscope and i-view™ and C-MAC® video laryngoscopes for tracheal intubation with an aerosol box: a randomized crossover manikin study

  A B C A vs. B A vs. C B vs. C P
Macintosh i-view C-MAC P P P  
(n = 37) (n = 37) (n = 37)     
Intubation time (s) 30 [26–32] 29 [26–32] 29 [25–31]     0.247
Success 37 (100) 35 (95) 37 (100)     0.135
Cormack-Lehane grade 2 [2–2] 1 [1–1] 1 [1–1] < 0.001 < 0.001 1 < 0.001
Subjective difficulty scale 4 [3–5] 3 [2–3] 2 [1–3] < 0.001 < 0.001 0.055 < 0.001
  1. Data are shown as median [interquartile range] or number (percentage). The P values of multiple comparisons were adjusted using the Bonferroni method