“…Rates of DNAR were examined after successful resuscitation from the second cardiac arrest for patients with recurrent IHCA or recurrent OHCA and after the index cardiac arrest for patients with no recurrent IHCA, since this latter group of patients would not have had a second cardiac arrest. Since many patients who eventually die have DNAR orders closer to the time of death, and as we were interested in examining whether DNAR decisions correlated with an index or recurrent cardiac arrest, we defined DNAR status as a patient for whom a DNAR order was placed within 24 hours after ROSC, based on our prior work, 3 but also examined rates of DNAR at any time after ROSC in the 3 patient groups. Furthermore, we compared rates of withdrawal of care (i.e., “comfort care”) among patients with no recurrent IHCA, recurrent IHCA, and recurrent OHCA who achieved ROSC…”