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Table 3 The total number of CCs with each CPR method and the number of adequate chest compressions with each compression depth and CPR method

From: Comparison of CPR quality and rescuer fatigue between standard 30:2 CPR and chest compression-only CPR: a randomized crossover manikin trial

  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