Table 5.
| Table 5a. Primary and secondary outcome measures by maintenance retraining interval for CPR skills | ||||||
|---|---|---|---|---|---|---|
| Total | 1.5 – 4.5 | 4.5 – 7.5 | 7.5 – 10.5 | 10.5 – 13.5 | p-value | |
| N | 2729 | 457 | 769 | 873 | 630 | |
| % Competent by global assessment (likely to provide perfusing CPR) | 81% | 82% | 81% | 82% | 80% | .5021 |
| % assessing responsiveness | 87% | 89% | 85% | 89% | 84% | .2611 |
| % accessing 911 | 71% | 72% | 71% | 71% | 68% | .1581 |
| % providing adequate ventilation | 81% | 83% | 81% | 81% | 78% | .0471 |
| % placing hands properly | 82% | 86% | 84% | 79% | 80% | .0041 |
| % demonstrating adequate compression depth | 88% | 91% | 88% | 87% | 87% | .0591 |
| Mean Composite CPR score | 4.1 (1.1) | 4.2 (1.1) | 4.1 (1.2) | 4.1 (1.1) | 4.0 (1.2) | .0122 |
| Time (min.) to test & train, CPR (N=801) | 4.9 (2.7) | 4.6 (2.3) | 4.7 (2.5) | 5.2 (3.1) | 5.2 (2.9) | .0383 |
| Table 5b. Primary and secondary outcome measures by maintenance retraining interval for AED skills | ||||||
|---|---|---|---|---|---|---|
| All | 1.5–4.5 mo | 4.5–7.5 mo | 7.5–10.5 mo | 10.5–13.5 mo | p-value | |
| N | 1752 | 278 | 482 | 581 | 411 | |
| % competent by global assessment (likely to provide effective shock) | 91% | 89% | 92% | 90% | 91% | .8931 |
| % baring chest for pad placement | 96% | 97% | 95% | 94% | 98% | .8371 |
| % placing pads correctly | 84% | 82% | 84% | 83% | 86% | .2081 |
| % clearing self | 84% | 86% | 86% | 83% | 84% | .2221 |
| % verbally clearing area | 75% | 73% | 76% | 74% | 78% | .2711 |
| % able to shock within 90 sec. | 80% | 82% | 80% | 80% | 78% | .2621 |
| Mean Composite AED score | 4.2 (1.1) | 4.2 (1.1) | 4.2 (1.1) | 4.1 (1.2) | 4.2 (1.1) | .4452 |
| Time to test & train, AED (min.) (N=1342) | 7.2 (3.4) | 6.6 (3.5) | 7.1 (3.4) | 7.1 (3.2) | 8.2 (3.5) | <.0013 |
1
Chi-square test for linearity
2
Kruskal-Wallis test
3
ANOVA F-test for linearity