| Total number of chest compressions | Adequate number of chest compressions with a depth of more than 5cm | Adequate number of chest compressions with a depth of more than 4 cm | ||||||
---|---|---|---|---|---|---|---|---|---|
Time (minute) | ST-CPR | CO-CPR | p-value | ST-CPR | CO-CPR | p-value | ST-CPR | CO-CPR | p-value |
1 | 80 ± 9 | 109 ± 6 | 0.001 | 55 ± 33 | 67 ± 44 | 0.048 | 73 ± 20 | 97 ± 29 | <0.001 |
2 | 77 ± 7 | 110 ± 7 | 0.001 | 41 ± 35 | 45 ± 47 | 0.309 | 64 ± 23 | 81 ± 42 | 0.007 |
3 | 77 ± 9 | 110 ± 6 | 0.001 | 39 ± 36 | 35 ± 45 | 0.464 | 62 ± 28 | 71 ± 46 | 0.185 |
4 | 76 ± 9 | 110 ± 7 | 0.001 | 31 ± 32 | 27 ± 43 | 0.428 | 57 ± 29 | 65 ± 48 | 0.161 |
5 | 76 ± 9 | 110 ± 7 | 0.001 | 32 ± 34 | 25 ± 41 | 0.128 | 56 ± 29 | 60 ± 49 | 0.509 |
6 | 75 ± 9 | 111 ± 8 | 0.001 | 31 ± 35 | 20 ± 39 | 0.042 | 52 ± 33 | 51 ± 50 | 0.963 |
7 | 75 ± 9 | 111 ± 8 | 0.001 | 27 ± 32 | 17 ± 36 | 0.040 | 51 ± 33 | 45 ± 50 | 0.342 |
8 | 76 ± 10 | 111 ± 9 | 0.001 | 29 ± 34 | 17 ± 36 | 0.024 | 50 ± 32 | 41 ± 49 | 0.236 |