Association of Training in Basic Life Support with the Evolution of Cardiopulmonary Resuscitation Performed by Firefighters
Table 3
Correlation between firefighter characterization variables and the effectiveness of external chest compressions in two minutes.
Teste CTEs 2 min
Service time
Training/specialization courses
Age
Weight
Stature
Pearson’s r
BF₁₀
Pearson’s r
BF₁₀
Pearson’s r
BF₁₀
Pearson’s r
BF₁₀
Pearson’s r
BF₁₀
Total performance (%)
0.171
0.342
0.217
0.494
0.024
0.19
−0.178
0.36
0.025
0.19
Quality of CTEs (%)
0.175
0.35
0.23
0.557
0.008
0.188
−0.108
0.238
−0.044
0.195
Contact of hands-on chest (%)
0.044
0.195
0.032
0.192
0.052
0.198
−0.21
0.464
0.18
0.363
Absence of CTEs (sec)
0.004
0.188
−0.066
0.205
−0.17
0.34
−0.068
0.206
−0.255
0.728
Correct hand position (%)
−0.011
0.188
−0.092
0.222
−0.068
0.206
−0.113
0.243
−0.04
0.194
Total number of compressions
−0.006
0.188
0.115
0.245
0.095
0.226
0.016
0.189
0.156
0.307
Mean depth (mm)
0.086
0.218
−0.008
0.188
0.167
0.332
0.247
0.669
−0.01
0.188
Adequate chest return (%)
0.193
0.403
0.171
0.341
0.179
0.361
−0.039
0.194
0.041
0.194
Compression force (%)
0.123
0.255
0.089
0.221
0.027
0.191
0.095
0.225
0.074
0.21
Adequate pace of CTEs (%)
0.033
0.192
0.136
0.274
0.027
0.191
−0.166
0.329
−0.116
0.247
Average CTEs per minute
−0.014
0.189
0.113
0.243
0.1
0.23
0.05
0.197
0.066
0.205
Firefighter
Heart rate start
−0.155
0.307
−0.131
0.266
−0.158
0.311
0.035
0.193
0.101
0.231
Final heart rate
−0.098
0.228
−0.127
0.26
−0.232
0.57
−0.053
0.199
0.047
0.196
PSE scale
−0.238
0.605
−0.375
3.932
0.275
0.911
0.064
0.204
−0.004
0.188
PSE scale = perceived exertion scale. Bold results indicate significant correlations at p > 0.05. Note. “r” corresponds to Pearson’s Bayesian correlation and “BF₁₀” corresponds to the Bayes factor, where BF₁₀ between 3 and 10 (moderate); BF₁₀ between 10 and 30 (strong); BF₁₀ between 30 and 100 (very strong); BF₁₀ > 100 (extreme).
