Table 1 Definition of variables used for reporting quality of chest compressions
Variables | Definition |
|---|---|
CPR ratio | The percentage of uninterrupted CPR conducted during entire resuscitation |
Compression ratio | The percentage of uninterrupted chest compressions conducted during entire resuscitation |
Compression rate | The average rate at which chest compression were performed during an uninterrupted series of chest compressions per minute |
Compression/minute | The average number of chest compressions delivered per minute |
Ventilation rate | The average rate at which ventilations were performed during an uninterrupted period of CPR |
Ventilation/minute | The average number of ventilations delivered per minute |
No-flow time | The sum of all pauses between chest compressions longer than 1.5 s |
No-flow ratio | Mean no-flow time divided by segment length |