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Table 2 Data from the cervical immobilization scenario

From: Comparison of the Airtraq® and Truview®laryngoscopes to the Macintosh laryngoscope for use by Advanced Paramedics in easy and simulated difficult intubation in manikins

  Macintosh Airtraq® TruView® P value
Overall Success Rate (%) 21/21 (100) 21/21 (100) 20/21 (95) P = 0.362
Duration of 1st intubation 10 (7, 14) 9 (6, 20) 17 (11, 48) P = 0.058
attempt in seconds (median, IQR) [Range] [3 to 60] [4 to 60] [6 to 60]  
Number of Intubation Attempts (%)
   1 18 (85.7) 18 (85.7) 16 (76.2) P = 0.562
   2 3 (14.3) 2 (9.5) 2 (9.5)  
   3 0 1 (4.8) 3 (14.3)  
No of Optimisation Manoeuvres
   0 9 (42.9) 15 (71.4)* 0* P < 0.001
   1 9 (42.9) 6 (28.6) 17 (81)  
   >1 3 (14.2) 0 4 (19)  
Severity of Dental Compression (%)
   0 0 11 (52.3)* 0 P < 0.001
   Mild [+] 10 (47.6) 9 (42.9) 12 (57.1)  
   Severe [++] 11 (52.4) 1 (4.8) 9 (42.9)  
  1. Notes: Data are reported as median (interquartile range) [range], or as number (percentage). P value indicates the value for the initial 3 group analysis using Chi square, one way ANOVA or ANOVA on ranks (Kruskall-Wallis) as appropriate.
  2. * Significantly [P < 0.05] different on post hoc Student-Newman-Keuls testing compared to both other devices