Table 2. Performance assessment.
| Items | Intervention group (n = 19) Mean ± SD |
Control group (n = 19) Mean ± SD |
p-value |
|---|---|---|---|
| At baseline | |||
| CC rate, compressions/minute | 127.2 ± 11.3 | 122.1 ± 13.7 | 0.220 |
| CC depth, % | 91.6 ± 16.3 | 95.9 ± 7.8 | 0.315 |
| Chest recoil, % | 89.1 ± 25.2 | 81.5 ± 31.0 | 0.415 |
| Ventilation, % | 73.7 ± 26.3 | 80.3 ± 18.5 | 0.383 |
| Interruption time, sec, n (%) | |||
| ≤ 10 | 17 (89.5) | 15 (78.9) | 0.660 |
| > 10 | 2 (10.5) | 4 (21.1) | |
| Overall performance, % | 72.7 ± 12.9 | 75.8 ± 25.2 | 0.638 |
| At six months | |||
| CC rate, compressions/minute | 113.9 ± 11.8 | 114. ± 11.6 | 0.845 |
| CC depth, % | 94.7 ± 12.4 | 96.8 ± 10.8 | 0.591 |
| Chest recoil, % | 88.8 ± 25.3 | 96.8 ± 5.9 | 0.195 |
| Ventilation, % | 85.1 ± 22.2 | 79.0 ± 34.2 | 0.518 |
| Interruption time, sec, n (%) | |||
| ≤ 10 | 15 (78.9) | 18 (94.7) | 0.340 |
| > 10 | 4 (21.1) | 1 (5.3) | |
| Overall performance, % | 87.2 ± 7.2 | 88.5 ± 11.1 | 0.682 |
| At one year | |||
| CC rate, compressions/minute | 115.8 ± 15.1 | 112.1 ± 13.7 | 0.425 |
| CC depth, % | 99.5 ± 0.8 | 92.6 ± 14.4 | 0.050 |
| Chest recoil, % | 97.7 ± 6.0 | 89.8 ± 17.4 | 0.075 |
| Ventilation, % | 93.1 ± 9.8 | 76.3 ± 29.4 | 0.028* |
| Interruption time, sec, n (%) | |||
| ≤ 10 | 13 (68.4) | 19 (100) | 0.020* |
| > 10 | 6 (31.6) | 0 (0.0) | |
| Overall performance, % | 93.8 ± 5.9 | 79.4 ± 21.3 | 0.010* |
CC: chest compressions. *Statistically significant using an independent samples t-test and Fisher’s exact test.