CPR Parameters During Cardiac Arrest Episodes.

Note: The patients were divided into manual CPR group and MCC CPR group depending on whether the patients were applied with MCC after arriving at the hospital, the chest compression out-of-hospital was not counted. cpm: compression per minute. AVCR = (N: total chest compression counts) / (T1: total chest compression time). ACCR = N / (T1—T2) (T2: hands-off time). Hands-off time was defined as the time that was longer than 1s between two consecutive compressions. Percentage of hands-off time = T2 / T1. Data was presented as median (interquartile ranges) (non-parametric) except survival [counts (percentage) (95% CI)].CPR Parameters During Cardiac Arrest Episodes.