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Table 3 Effects of the use of CPR.com device or standard equipment compared with prior CPR training

From: Effect of an interactive cardiopulmonary resuscitation assist device with an automated external defibrillator synchronised with a ventilator on the CPR performance of emergency medical service staff: a randomised simulation study

  Effect of allocation to CPR.com device Effect of each prior CPR training within the last 5 years
Hands-off time (%) 1.02 (0.7); p = 0.156 −0.25 (0.1); p = 0.042
Time interval until the administration of adrenaline (s) −22.85 (7.3); p = 0.003 −1.84 (1.3); p = 0.157
Time interval until the administration of amiodarone (s) −16.96 (6.7); p = 0.016 −2.99 (1.3); p = 0.022
Number of CC per minute [min−1] (n) −2.79 (1.2); p = 0.022 −0.02 (0.4); p = 0.954
Number of ventilations per minute [min−1] (n) −1.79 (0.4); p < 0.001 0.02 (0.1); p = 0.774
Number of changes of the person doing chest compressions (n) 0.58 (0.1); p < 0.001 0.00 (0.0); p = 0.989
  1. Hands-off time: percentage of time without chest compressions during the entire CPR time; CC chest compressions
  2. Each row shows the effects determined by an analysis of covariance (ANCOVA) adapted for the cross-over study design. The effect of the allocation to the use of CPR.com study device or standard equipment is presented as marginal means and associated standard errors. The impact of the number of prior CPR trainings is presented as estimates and standard error for the effect of each cumulative prior CPR training of a rescuer team member within the last 5 years