Depth of compressions and coefficient of variation (COV) with continuous compressions for 60 s using the two-thumb versus the two-finger technique
| Two-thumb (60 s) | Two-finger (60 s) | p Value | |
|---|---|---|---|
| Depth (mm) | 27.2±5.7 | 22.1±4.6 | 0.0008 |
| Variability (COV) | 6.7±3.2 | 9±2.8 | 0.002 |
Coefficient of variation (COV)=SD/mean×100.