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Table 1 Rate and depth of chest compressions (mean ± SE)
| Hands-Only CPR | 30:2 CPR | |||||
|---|---|---|---|---|---|---|
| Measures | Early | End | Across time | Early | End | Across time |
| Compression rate (number per minute)* | 90.4 ± 1.2 | 92 ± 3.5 | 91.2 ± 2.3 | 96.8 ± 0.5 | 98.9 ± 5.7 | 97.9 ± 3.5 |
| Compression depth (mm)* | 42.1 ± 2.7 | 36.3 ± 3.0 | 39.2 ± 4.1 | 43.7 ± 0.9 | 40.3 ± 2.5 | 42.0 ± 2.5 |
| Percent of compressions 38 mm or more* | 73.2 ± 10.5 | 46.6 ± 16.8 | 59.9 ± 19.1 | 82.3 ± 2.6 | 62.8 ± 16.4 | 72.5 ± 14.8 |
| Hands-Only CPR and 30:2 CPR | ||||||
| Early | End | All Subjects (across time and CPR type) | ||||
| Compression rate (number per minute) | 93.7 ± 0.8 | 95.5 ± 4.7 | 94.6 ± 1.8 | |||
| Compression depth (mm)* | 42.9 ± 1.8 | 38.3 ± 2.8 | 40.7 ± 2.3 | |||
| Percent compressions 38 mm or more* | 77.8 ± 4.0 | 54.7 ± 16.6 | 66.2 ± 10.4 | |||
