Acute cardiac care & resuscitationCohort study
Bystander interventions and survival after out-of-hospital cardiac arrest according to neighborhood ethnicity
- Registry-based study
- geocoded
- logistic regression adjusted for patient sex, age, and area-level household income
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 ethnicityOHCAs included · non-Western neighborhoods 483 · Danish neighborhoods 12,100 · mixed population neighborhoods 167
- 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
Main finding
As reported in the abstract
Bystander cardiopulmonary resuscitation (CPR)
Each group vs danish neighborhoodsOdds ratio (95% CI)
non-Western neighborhoodssignificantly lower odds
0.71(0.58–0.87)
mixed population neighborhoodsno significant difference
0.64(0.42–1.23)
Observational data: associations, not effects.
Further findings
| Outcome | OR (95% CI) | |
|---|---|---|
| Bystander defibrillation — non-Western neighborhoods vs Danish neighborhoods · significantly lower odds | 0.64 (0.42–0.97) | |
| Bystander defibrillation — mixed population neighborhoods vs Danish neighborhoods · no significant difference | 1.17 (0.68–2.00) | |
| 0.512Odds ratio (log scale) |
Grid cells by neighborhood type
| Outcome | non-Western neighborhoods | Danish neighborhoods | mixed population neighborhoods | Estimate |
|---|---|---|---|---|
| OHCA/km²/year incidence | 5.17 | 2.65 | 4.46 |
- 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
Summarised from the published abstract; every number is checked against it