Table 2 Overview results performance
Compression rate 90–110/min 35 36.84 28 29.47 0.2815
Compression depth 38–51 mm 51 53.68 45 47.37 0.3843
No delay to start CPR 55 57.89 64 68.82 0.1187
Initial Assessment > 60% correct 22 23.16 29 30.53 0.2530
Compression without faults 33.49 ± 32.75 25.41 ± 32.80 0.0795
Compression too deep 25.53 ± 36.98 30.40 ± 40.58 0.4214
Compression too shallow 26.13 ± 34.96 26.34 ± 38.16 0.8410
After 1 week (n = 95) (n = 95)
No delay to start CPR 80 84.21 $ 84 88.42 $ 0.4001
Initial Assessment > 60% correct 81 85.26* 87 91.58* 0.1787
Compression without faults 39.75 ± 34.44 36.50 ± 35.02 † 0.5170
Compression too deep 28.52 ± 37.17 40.56 ± 41.49 ¥ 0.0354
Compression too shallow 24.45 ± 34.05 14.07 ± 29.55 ‡ 0.0252
After 6 months (n = 30) (n = 32)
Compression rate 90–110/min 13 43.33 7 21.88 0.3425
No delay to start CPR 27 90 £1 26 83.87 £2 0.5195
Initial Assessment > 60% correct 25 83.33 # 26 81.25 # 0.9330
Results of performance data for the different study groups in the three evaluations. Data in x = n and percentage of respective group size or in absolute numbers ± standard deviation.
Time to start CPR in seconds. Compression without faults: adequate compression depth and correct chest well decompression. Significant differences between groups are indicated bold.
Significant differences between time-points:
* baseline = > 1 week: p < 0.0001; $ baseline = > 1 week: p = 0.0003; † baseline = > 1 week: p = 0.0089;
‡ baseline = > 1 week: p = 0.006; ¥ baseline = > 1 week: p = 0.0072.
# baseline = > 6 months: p < 0.0001; £1 baseline = > 6 months: p < 0.0014; £2 baseline = > 6 months: p < 0.0496.