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Table 1 A comparison of BLS step mean scores and total score by group using Kruskal-Wallis test

From: The timing of testing influences skill retention after basic life support training: a prospective quasi-experimental study

 NoExam
N = 179
EndExam
N = 165
3mExam
N = 120
 
BLS stepMean score ± SDp
Shouting for help0.5 ± 0.50.5 ± 0.50.8 ± 0.4< 0.001
Examining consciousness0.9 ± 0.20.9 ± 0.31.0 ± 0.20.143
Testing vital signs0.6 ± 0.50.5 ± 0.51.0 ± 0.0< 0.001
Call for ALS team0.9 ± 0.21.0 ± 0.11.0 ± 0.10.063
Position of hands0.6 ± 0.50.5 ± 0.50.9 ± 0.4< 0.001
Depth of chest compression0.7 ± 0.40.8 ± 0.40.8 ± 0.40.812
Rate of chest compression0.7 ± 0.40.6 ± 0.50.8 ± 0.4< 0.001
Consistency of chest compression0.8 ± 0.40.7 ± 0.51.0 ± 0.2< 0.001
30:2 ratio0.9 ± 0.20.9 ± 0.31.0 ± 0.10.046
Duty cycle0.8 ± 0.40.9 ± 0.31.0 ± 0.2< 0.001
Total score (0–10)7.6 ± 1.67.3 ± 1.89.1 ± 0.8< 0.001
  1. Scoring based on 0 = incorrect and 1 = correct. The total score is a sum of the individual BLS scores. SD Standard deviation