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Table 3 Influence of sequence on insertion time and number of attemps

From: Laypersons can successfully place supraglottic airways with 3 minutes of training. A comparison of four different devices in the manikin

Sequence 1 2 3 4 P value
Time [s]      
   LMA 28 ± 21.4 19.7 ± 15.8 25.3 ± 25.9 22 ± 21 0.36
   Cobra 26.7 ± 18.4 34.8 ± 35.1 29.6 ± 25.3 35.9 ± 30.5 0.47
   LT 19.6 ± 13.4 20.74 ± 19.9 23.4 ± 13.9 23.8 ± 17.4 0.57
   FT 22.5 ± 25.1 15.7 ± 5.9 14.9 ± 5.7 18.4 ± 11.7 0.13
Attempts [n]      
   LMA 1.36 ± 0.59 1.14 ± 0.35 1.22 ± 0.54 1.12 ± 0.53 0.31
   Cobra 1.37 ± 0.59 1.45 ± 0.78 1.37 ± 0.59 1.58 ± 0.77 0.52
   LT 1.25 ± 0.56 1.32 ± 0.58 1.36 ± 0.59 1.48 ± 0.7 0.46
   FT 1.02 ± 0.35 1.02 ± 0.16 1.02 ± 0.16 1.08 ± 0.28 0.19
  1. No significant difference between LMA, Cobra, LT and FT regarding the sequence of use could be demonstrated for the time of insertion or the attemps needed. Data are presented as means +/- standard deviation