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Bystander cardiopulmonary resuscitation differences by sex – The role of arrest recognition

•Females were less likely to receive bystander cardiopulmonary resuscitation (CPR)•In public locations, lower arrest recognition partly explained the sex difference.•Reasons for the observed differences should be investigated, and public education and training should address this issue.•Bystander AE...

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Published in:Resuscitation 2024-06, Vol.199, p.110224, Article 110224
Main Authors: Munot, Sonali, Bray, Janet E., Redfern, Julie, Bauman, Adrian, Marschner, Simone, Semsarian, Christopher, Denniss, Alan Robert, Coggins, Andrew, Middleton, Paul M., Jennings, Garry, Angell, Blake, Kumar, Saurabh, Kovoor, Pramesh, Vukasovic, Matthew, Bendall, Jason C., Evens, T., Chow, Clara K.
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Language:English
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Summary:•Females were less likely to receive bystander cardiopulmonary resuscitation (CPR)•In public locations, lower arrest recognition partly explained the sex difference.•Reasons for the observed differences should be investigated, and public education and training should address this issue.•Bystander AED use was lower in females, mostly explained by fewer female arrests in a public location. To assess whether bystander cardiopulmonary resuscitation (CPR) differed by patient sex among bystander-witnessed out-of-hospital cardiac arrests (OHCA). This study is a retrospective analysis of paramedic-attended OHCA in New South Wales (NSW) between January 2017 to December 2019 (restricted to bystander-witnessed cases). Exclusions included OHCA in aged care, medical facilities, with advance care directives, from non-medical causes. Multivariate logistic regression examined the association of patient sex with bystander CPR. Secondary outcomes were OHCA recognition, bystander AED application, initial shockable rhythm, and survival outcomes. Of 4,491cases, females were less likely to receive bystander CPR in private residential (Adjusted Odds ratio [AOR]: 0.82, 95%CI: 0.70–0.95) and public locations (AOR: 0.58, 95%CI:0.39–0.88). OHCA recognition during the emergency call was lower for females arresting in public locations (84.6% vs 91.6%, p = 0.002) and this partially explained the association of sex with bystander CPR (∼44%). This difference in recognition was not observed in private residential locations (p = 0.2). Bystander AED use was lower for females (4.8% vs 9.6%, p 
ISSN:0300-9572
1873-1570
1873-1570
DOI:10.1016/j.resuscitation.2024.110224