Table 3 CPR-Quality
Time | Check for breathing instruction | |||||||
|---|---|---|---|---|---|---|---|---|
Original wording | Head tilt-chin lift instruction | |||||||
MV ± SD | Percentage %, (n) | MV ± SD | Percentage %, (n) | p-value | ||||
Initial Original n = 14 Specified n = 27 | Compression rate (bpm) | 86.8 ± 15.8 | 102.4 ± 14.5 | 0.12 | ||||
Compression depth (mm) | 46.8 ± 12.9 | 53.4 ± 11.6 | 0.019 | |||||
Correct chest release (n) | 57.1% (8) | 33.3% (9) | 0.189 | |||||
Correct hand position (n) | 92.9% (13) | 88.9% (24) | 1.00 | |||||
0 – 1 Min Original n = 14 Specified n = 22 | Compression rate (bpm) | 87.4 ± 19.0 | 101.6 ± 13.6 | 0.089 | ||||
Compression depth (mm) | 47.0 ± 13.0 | 54.1 ± 11.6 | 0.017 | |||||
Correct chest release (n) | 71.4% (10) | 45.5% (10) | 0.176 | |||||
Correct hand position (n) | 92.9% (13) | 86.4% (19) | 1.00 | |||||
1 – 2 Min Original n = 12 Specified n = 13 | Compression rate (bpm) | 97.3 ± 19.6 | 107.2 ± 17.6 | 0.406 | ||||
Compression depth (mm) | 45.9 ± 13.6 | 54.0 ± 11.6 | 0.046 | |||||
Correct chest release (n) | 66.7% (8) | 38.5% (5) | 0.238 | |||||
Correct hand position (n) | 91.7% (11) | 84.6% (11) | 1.00 | |||||
2 – 3 Min Original n = 10 Specified n = 4 | Compression rate (bpm) | 95.8 ± 21.8 | 117.7 ± 19.4 | 0.142 | ||||
Compression depth (mm) | 46.0 ± 9.6 | 55.7 ± 7.7 | 0.142 | |||||
Correct chest release (n) | 60.0% (6) | 50.0% (2) | 1.00 | |||||
Correct hand position (n) | 90.0% (9) | 100.0% (4) | 1.00 | |||||
Total Original n = 14 Specified n = 27 | Compression rate (bpm) | 91.5 ± 17.2 | 103.1 ± 14.0 | 0.135 | ||||
Compression depth (mm) | 46.7 ± 12.6 | 53.1 ± 11.4 | 0.030 | |||||
Correct chest release (n) | 79.7% | 60.7% | 0.185 | |||||
Correct hand position (n) | 91.0% | 87.0% | 0.946 | |||||