Table 1.
Initial and third month assessment of collected data
| Measurement | Scenario | P* | ||
|---|---|---|---|---|
| CPR with smartphone App-ona | CPR with smartphone App-offb | Hands-only CPRc | ||
| Initial assessment | ||||
| Mean chest compression rate/min (SD) | 108±5.9 | 112±9.2 | 112±9.5 |
a,bP<0.001 a,cP<0.001 b,cP=0.42 |
| Compressions with adequate rate (%) | 86±20 | 68±31 | 68±33 |
a,bP<0.001 a,cP<0.001 b,cP=0.78 |
| Mean compression depth (mm) | 48±8.6 | 47.5±8.7 | 47.8±9 | P=0.68 |
| Recoil (%) | 83±26 | 87±22 | 84±24 | P=0.34 |
| Third month assessment | ||||
| Mean chest compression rate/min (SD) | 107±5.9 | 110±8.6 | 109±8.1 |
a,bP=0.002 a,cP=0.001 b,cP=0.96 |
| Compressions with adequate rate (%) | 87 ±19.6 | 77±27 | 75±28 |
a,bP<0.001 a,cP<0.001 b,cP=0.36 |
| Mean compression depth (mm) | 51.3±8.8 | 52±9 | 51.3±9.6 | P=0.91 |
| Recoil (%) | 84.8±34 | 84.4±26 | 86.2±25 | P=0.86 |
*P<0.017 was accepted as statistically significant. SD=Standard deviation, CPR=Cardio-pulmonary resuscitation