Table 3.
Association of intervention and resuscitation performance
| Intervention group | Control group | Difference (95% CI) | p | |
|---|---|---|---|---|
|
Performance measures |
n=62 |
n=62 |
|
|
|
Intention-to-treat analysis n=124 |
|
|
|
|
| Hands-on time (sec), mean (SE) |
57.8 (±3.28) |
52.2 (±2.86) |
5.5 (95% CI −3.1, 14.2) |
0.2 |
| Time to first meaningful measure (sec), mean (SE) |
42 (±2.63) |
43.3 (±2.43) |
−1.4 (95% CI −8.4, 5.7) |
0.71 |
| Time to chest compressions (sec), mean (SE) |
57.3 (±3.61) |
60 (±3.26) |
−2.8 (95% CI −12.4, 6.9) |
0.57 |
| Time to ventilation (sec), mean (SE) |
67.6 (±3.68) |
66.3 (±3.44) |
1.4 (95% CI −8.6, 11.3) |
0.79 |
| Time to defibrillation (sec), mean (SE) |
69.7 (±3.93) |
66 (±3.84) |
3.7 (95% CI −7.2, 14.6) |
0.54 |
| Leadership statements, mean (SE) |
10.4 (±0.59) |
10.9 (±0.56) |
−0.5 (95% CI −2.1, 1.1) |
0.54 |
|
Per-protocol analysis n=108 |
n=46 |
n=62 |
|
|
| Hands-on time (sec), mean (SE) |
57.2 (±3.76) |
52.2 (±2.86) |
4.0 (95% CI −4.3, 14.1) |
0.29 |
| Time to first meaningful measure (sec), mean (SE) |
42.5 (±3.07) |
43.3 (±2.43) |
−0.8 (95% CI −8.5, 6.8) |
0.82 |
| Time to chest compressions (sec), mean (SE) |
59.2 (±4.22) |
60 (±3.26) |
−0.8 (95% CI −11.2, 9.6) |
0.88 |
| Time to ventilation (sec), mean (SE) |
65.7 (±4.46) |
66.3 (±3.44) |
−0.5 (95% CI −11.5, 10.4) |
0.92 |
| Time to defibrillation (sec), mean (SE) |
73.5 (±4.61) |
66 (±3.84) |
7.5 (95% CI −4.4, 19.3) |
0.21 |
| Leadership statements, mean (SE) | 11.2 (±0.71) | 10.9 (±0.56) | 0.3 (95% CI −1.5, 2.1) | 0.72 |
SE denotes standard error; 95% CI confidence interval, Intention-to-treat analysis includes all randomized participants, per-protocol analysis includes only participants who followed the instructions in the intervention group.