Acute cardiac care & resuscitation

Bystander interventions and survival after out-of-hospital cardiac arrest according to neighborhood ethnicity

ResuscitationPublished Registry-based study

Authors' conclusion

Individuals who experienced OHCA in predominantly non-Western neighborhoods received less bystander CPR and defibrillation compared to Danish neighborhoods. Targeted and tailored interventions may help improve resuscitation disparities in these areas.

Study context

Population
Out-of-hospital cardiac arrests in Denmark, 2016–2021, grouped by neighborhood ethnicityOut-of-hospital cardiac arrest (OHCAs) included
Participants
12,750 arrests
Exposure
Non-Western and mixed population neighborhoods compared to Danish neighborhoods
  • non-Western neighborhoodsn = 483
  • Danish neighborhoodsn = 12,100reference
  • Mixed population neighborhoodsn = 167
Outcome
Bystander cardiopulmonary resuscitation (CPR)
Methodological detailsgeocoded, logistic regression adjusted for patient sex, age, and area-level household income
  • Geocoded
  • Logistic regression adjusted for patient sex, age, and area-level household income

Main finding

As reported in the abstract

Each group vs danish neighborhoodsOdds ratio (95% CI)
non-Western neighborhoodssignificantly lower odds
0.71(0.58–0.87)
Mixed population neighborhoods
0.64(0.42–1.23)

Observational data: associations, not effects.

Further findings

OutcomeOR (95% CI)
Bystander defibrillationnon-Western neighborhoodsvs Danish neighborhoodsSignificantly lower odds0.64 (0.42–0.97)
Bystander defibrillationMixed population neighborhoodsvs Danish neighborhoods1.17 (0.68–2.00)

Grid cells by neighborhood type

Outcomenon-Western neighborhoodsDanish neighborhoodsMixed population neighborhoods
OHCA/km²/year incidence5.172.654.46
Grid cells by neighborhood type — Total grid cells
78,214

Original publication

Bystander interventions and survival after out-of-hospital cardiac arrest according to neighborhood ethnicity. Resuscitation. Published 6 February 2026. doi:10.1016/j.resuscitation.2026.111008

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

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