Sex difference in the association between type of bystander CPR and clinical outcomes in patients with out of hospital cardiac arrest.

Background: A recent study suggested that women with out-of-hospital cardiac arrest have a smaller survival benefit with bystander cardiopulmonary resuscitation than men. We evaluated whether this weaker association between bystander cardiopulmonary resuscitation and survival in women is related to dispatcher-assisted vs unassisted bystander cardiopulmonary resuscitation.

Methods: In a national registry in the Republic of Korea, we identified adult patients with out-of-hospital cardiac arrest during 2013-2018.