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Table 1 Data from the easy laryngoscopy 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) 20/21 (95) 19/21 (90.5) P = 0.597
Duration of 1st intubation 9 (6, 16) 11 (6, 14) 17 (11, 60)* P = 0.004
attempt in seconds (median, IQR) [Range] [3 to 60] [4 to 60] [6 to 60]  
Number of Intubation Attempts (%)
   1 20 (95.3) 19 (90.5) 14 (66.7) P = 0.063
   2 1 (4.7) 1 (4.75) 3 (14.3)  
   3 0 1 (4.75) 4 (19)  
No of Optimisation Manoeuvres (%)
   0 10 (47.6) 19 (90.5)* 0* P < 0.001
   1 11 (52.4) 2 (9.5) 14 (66.7)  
   >1 0 0 7 (33.3)  
Severity of Dental Compression (%)
   0 0* 7 (33.3) 3 (14.3) P < 0.001
   Mild [+] 10 (47.6) 12 (57.2) 14 (66.7)  
   Severe [++] 11 (52.4) 2 (9.5) 4 (19)  
  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