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Table 2 A learning effect favouring the second ETI used

From: A randomised crossover comparison of two endotracheal tube introducers: the FROVA and the Flexible Tip Bougie for GlideScope intubation of a difficult airway manikin by infrequent intubators

Median times in seconds
All participants (n = 24)
ETI type ETI time** ETT time Total time** ETI difficulty** ETT difficulty*
 FTB 15 20 37.5 2 3
 FROVA 36.5 16 63 5 4
FROVA ETI first group (n = 12)
ETI type ETI time** ETT time Total time** ETI difficulty* ETT difficulty*
 FTB 11 18.5 29.5 2 2.5
 FROVA 41 16 74 5 5
FTB ETI first group (n = 12)
ETI type ETI time** ETT time Total time ETI difficulty* ETT difficulty
 FTB 20 20.5 38.5 2 3
 FROVA 36.5 14.5 54 5 3.5
  1. **P < 0.01; *P < 0.05