Table 3 Performance variables for chest compressions performed without feedback
Variable | 0 to 29.9 s | 30 s to 59.9 s | 60 s to 89.9 s | 90 s to 120 s |
|---|---|---|---|---|
Compressions above target (%) | 73.2 (0.00-95.6) | 53.4 (0.00-100) | 23.5 (0.00-100) | 29.6 (0.00-99.5) |
Compressions within target (%) | 19.6 (2.26-60.2) | 33.1 (0.00-81.9) | 44.5 (0.00-74.7) | 32.7 (0.00-83.6) |
Compressions below target (%) | 0.90 (0.00-3.76) | 0.00 (0.00-0.00) | 0.00 (0.00-26.9) | 0.00 (0.00-6.35) |
Mean compression depth (cm) | 5.94 SD 0.77 | 5.92 SD 0.77 | 5.87 SD 0.77 | 5.88 SD 0.77 |
Rate above target (%) | 0.00 (0.00-39.9) | 0.0 (0.00-33.3) | 0.00 (0.00-13.1) | 0.00 (0.00-9.33) |
Rate within target (%) | 61.0 (26.4-95.9) | 58.0 (4.98-100) | 48.5 (5.24-100) | 47.4 (5.95-99.6) |
Rate below target (%) | 1.85 (1.72-36.8) | 0.00 (0.00-49.8) | 0.00 (0.00-67.6) | 0.84 (0.00-68.4) |
Mean compression rate (min-1) | 108.8 SD 10.7 | 108.6 SD 12.1 | 107.6 SD 12.0 | 107.1 SD 12.2 |