To the Editor: Dr Bobrow and colleagues1 concluded that compression-only cardiopulmonary resuscitation (COCPR) is superior to conventional CPR in patients who experienced out-of-hospital cardiac arrest based on the observation of better overall survival and survival with good neurologic outcome (Cerebral Performance Category [CPC] score grade 1 or 2). Although a higher percentage of patients undergoing COCPR survived (ie, had CPC score <5) and, compared with the total number of patients observed, the percentage of survivors with good outcomes was highest in this group, there is an alternative interpretation of their data.
Gorelick KJ. Survival From Out-of-Hospital Cardiac Arrest After Chest Compression–Only CPR. JAMA. 2011;305(2):147-148. doi:10.1001/jama.2010.1951