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Cardiac arrest

Bystander CPR benefits greatest in deprived areas

Differences in the rates of bystander cardiopulmonary resuscitation for out-of-hospital cardiac arrest resulting in favourable neurological outcomes according to the regional deprivation index
Resuscitation Plus · Added 22 September 2026

Analysis of 184,727 Korean OHCA cases found bystander CPR rates were lowest in the most deprived regions, yet its association with good neurological outcome was strongest there (aOR 1.56 vs 1.31–1.34 in better-off regions)

Study type

Registry

Design

National registry analysis with multivariable logistic regression

Participants

184,727 adults with presumed cardiac OHCA (61.0% received bystander CPR)

Main finding

Bystander CPR rates were lowest in high-deprivation regions (57.9% vs 62.6% in low-deprivation), yet the association with favourable neurological outcome was strongest there (aOR 1.56, 95% CI 1.23–1.99 vs 1.31–1.34; significant interaction)

Caveat

Korean registry data; observational associations may not generalise to Australian systems

Bottom line

Context only

Learning goal

Understand how socioeconomic disadvantage shapes bystander CPR rates and outcomes in Australian communities.

More

• Topic: Cardiac arrest
• Daily scan: 22 September 2026

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