Cardiac arrest & resuscitation

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

ResuscitationPublished Retrospective cohort study

Authors' conclusion

OHCA recognition and bystander CPR differ by patient sex in NSW.

Study context

Population
Bystander-witnessed, paramedic-attended Out-of-hospital Cardiac Arrests (OHCA) in New South Wales, January 2017 to December 2019
Participants
4,491 participants
Exposure
Female vs male patients
Outcome
Bystander CPR

Main finding

As reported in the abstract

Females vs MalesAdjusted odds ratio (95% CI)
Private residential locations
0.82(0.70–0.95)
Public locations
0.58(0.39–0.88)

Observational data: associations, not effects.

Secondary outcomes

OHCA recognition during emergency call, public locations

P = 0.002

OutcomeFemalesMalesAOR (95% CI)
Bystander AED use4.8%9.6%0.83 (0.60–1.12)
Initial shockable rhythm0.52 (0.44–0.61)
Survival of the event1.34 (1.15–1.56)
OHCA recognition during emergency call, public locations — Partially explained the sex association with bystander cardiopulmonary resuscitation (CPR)
∼44%
  • Bystander AED use: after adjustment for location and other covariates; no longer significant
  • Bystander AED use: unadjusted p < 0.001

OHCA recognition, private residential locations

Sex difference in recognition not observed
P = 0.2

Survival to hospital discharge

No sex difference in survival to hospital discharge
AOR 0.96 (95% CI 0.77-1.19)

Original publication

Bystander cardiopulmonary resuscitation differences by sex – The role of arrest recognition. Resuscitation. Published 27 April 2024. doi:10.1016/j.resuscitation.2024.110224

Composed by AI from the published abstract and checked against it. How Briefs are made →

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