Table 1 A comparison of BLS step mean scores and total score by group using Kruskal-Wallis test
NoExam N = 179 | EndExam N = 165 | 3mExam N = 120 | ||
|---|---|---|---|---|
BLS step | Mean score ± SD | p | ||
Shouting for help | 0.5 ± 0.5 | 0.5 ± 0.5 | 0.8 ± 0.4 | < 0.001 |
Examining consciousness | 0.9 ± 0.2 | 0.9 ± 0.3 | 1.0 ± 0.2 | 0.143 |
Testing vital signs | 0.6 ± 0.5 | 0.5 ± 0.5 | 1.0 ± 0.0 | < 0.001 |
Call for ALS team | 0.9 ± 0.2 | 1.0 ± 0.1 | 1.0 ± 0.1 | 0.063 |
Position of hands | 0.6 ± 0.5 | 0.5 ± 0.5 | 0.9 ± 0.4 | < 0.001 |
Depth of chest compression | 0.7 ± 0.4 | 0.8 ± 0.4 | 0.8 ± 0.4 | 0.812 |
Rate of chest compression | 0.7 ± 0.4 | 0.6 ± 0.5 | 0.8 ± 0.4 | < 0.001 |
Consistency of chest compression | 0.8 ± 0.4 | 0.7 ± 0.5 | 1.0 ± 0.2 | < 0.001 |
30:2 ratio | 0.9 ± 0.2 | 0.9 ± 0.3 | 1.0 ± 0.1 | 0.046 |
Duty cycle | 0.8 ± 0.4 | 0.9 ± 0.3 | 1.0 ± 0.2 | < 0.001 |
Total score (0–10) | 7.6 ± 1.6 | 7.3 ± 1.8 | 9.1 ± 0.8 | < 0.001 |