Table 3.
Quality of chest compression with adjusted group effects
| Control group |
Facultative group | Mandatory group | Control vs. facultative group β [95 %CI]; p |
Control vs. mandatory group β [95 %CI]; p |
|
|---|---|---|---|---|---|
| Correct compression rate [100–120/min− 1] (%) | β=-4.59 [-16.91; 7.73]; p = .47 | β = 18.61 [6.10; 31.11]; p = .004 | |||
| mean (standard deviation) | 43.8 (±36.8) | 39.2 (±34.8) | 65.4 (±32.7) | ||
| median (lower; upper quartile) | 42 (6; 81) | 32 (6.3; 74.8) | 81 (44.3; 89) | ||
| Correct compression depth [5-6 cm] (%) | β = 11.20 [-0.57; 22.98]; p = .06 | β = 22.91 [10.97; 34.86]; p < .001 | |||
| mean (standard deviation) | 24.4 (±30.4) | 30.1 (±35.2) | 47.6 (±37.3) | ||
| median (lower; upper quartile) | 10 (0.5; 36.5) | 7.5 (0; 59.5) | 51.5 (9.3; 82.5) | ||
| Correct release of compression (%) | β=-10.46 [-19.72; -1.20] ; p = .027 | β = 1.34 [-7.99; 10.66]; p = .78 | |||
| mean (standard deviation) | 89.7 (±22.6) | 81.7 (±30.9) | 87.8 (±23.8) | ||
| median (lower; upper quartile) | 100 (94.6; 100) | 98 (77.5; 100) | 100 (89.3; 100) | ||
| Correct hand position (%) | β=-1.29 [-10.64; 8.06]; p = .79 | β = 6.13 [-3.28; 15.54]; p = .20 | |||
| mean (standard deviation) | 76.8 (±28.3) | 77.6 (±30.9) | 86.4 (±19.0) | ||
| median (lower; upper quartile) | 90 (64.3; 99) | 95 (59.3; 99) | 97 (79.3; 100) |