Cardiac arrest & resuscitation
Paediatric out-of-hospital cardiac arrest occurring before and after emergency medical service arrival: a retrospective study
Main finding · Survival to hospital dischargeResult — go to the resultAdjusted odds ratio 1.91 95% CI 1.04–3.52Authors' conclusion
Paediatric OHCA witnessed by EMS is associated with significantly higher adjusted odds of survival compared with bystander witnessed events.
Study context
- Population
- Paediatric (<18 years) Out-of-hospital Cardiac Arrest (OHCA) attended by Emergency Medical Services (EMS), Victorian Ambulance Cardiac Arrest Registry, 2000–20241,891 EMS-treated
- Participants
- 2,645 participants
- Exposure
- EMS witnessed vs bystander witnessed vs unwitnessed paediatric OHCA
- Outcome
- Survival to hospital discharge
Methodological detailsregistry-based, multivariable logistic regression
- Registry-based
- Multivariable logistic regression
Main finding
As reported in the abstract
Adjusted odds ratio
1.91
95% CI 1.04–3.52
EMS witnessed vs Bystander witnessed
aOR 1.91 (95% CI 1.04–3.52)
Observational data: associations, not effects.
Further findings
| Outcome | aOR (95% CI) | |
|---|---|---|
| Prehospital ROSCEMS witnessed vs Bystander witnessed | 1.83 (1.20–2.77) | |
| 0.20.5125Adjusted odds ratio (log scale) |
Witness status distribution (EMS-treated)
Incidence trend over 25 years
- Incidence of unwitnessed and bystander witnessed OHCA declined
- P < 0.001
- EMS witnessed incidence remained stable
Original publication
Paediatric out-of-hospital cardiac arrest occurring before and after emergency medical service arrival: a retrospective study. Resuscitation. Published 15 August 2026. doi:10.
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