Table 3:
Effect of rate calculation method on CPR quality classification status.
| Effect of rate calculation method on CPR quality classification status | ||||
|---|---|---|---|---|
| Rate Calculation Method | ||||
| 2-Second method1 | 3-Second Method1 | Trimmed Mean Method1 | All Methods2 | |
| Events (n=200) | ||||
| Guideline-compliant status change | 7 (3.5%) | 10 (5.0%) | 9 (4.5%) | 14 (7.0%) |
| ≥ 5 bpm difference | 3 (1.5%) | 4 (2.0%) | 11 (5.5%) | 15 (7.5%) |
| Epochs (n=1856) | ||||
| Guideline-compliant status change | 31 (1.7%) | 49 (2.6%) | 80 (4.3%) | 114 (6.1%) |
| ≥ 5 bpm difference | 47 (2.5%) | 56 (3.0%) | 108 (5.8%) | 162 (8.7%) |
1
Reference method: Instantaneous rate with ≥ 1 sec pause (1-second method).
2
Denotes Guideline-compliant status change (top line) or average change ≥ 5 compressions per minute (bottom line) between any two of the calculation methods.