Cardiac arrest & resuscitation
The association between emergency medical service personnel’s out-of-hospital cardiac arrest case volume and patient outcomes: a cohort study
Main finding · 30-day survivalResult — go to the resultAdjusted relative risk 1.000 95% CI 0.995–1.004Authors' conclusion
EMS personnel's OHCA case volume in the preceding year was not associated with an improved 30-day survival.
Study context
- Population
- Adult out-of-hospital cardiac arrest (OHCA) patients in Denmark, 2016–2023, with identifiable attending emergency medical service (EMS) personnel3,449 EMS personnel
- Participants
- 16,931 patients
- Exposure
- Annual OHCA case volume of EMS personnel in first arriving unit
- Outcome
- 30-day survival
- Follow-up
- 30 days
Methodological detailsnationwide registry, generalised estimating equations
- Nationwide registry
- Generalised estimating equations
Main finding
As reported in the abstract
Adjusted relative risk
1.000
95% CI 0.995–1.004
Increasing annual OHCA case volume
aRR 1.000 (95% CI 0.995–1.004)
Observational data: associations, not effects.
Further findings
Any ROSC
| aRR (95% CI) | ||
|---|---|---|
| Increasing annual OHCA case volumeNot associated | 1.001 (0.998–1.003) | |
| 0.512Adjusted relative risk (log scale) |
Annual OHCA exposure per EMS personnel in first arriving unit
- Median (Q1;Q3) cases
- 5 (3;8)
Original publication
The association between emergency medical service personnel’s out-of-hospital cardiac arrest case volume and patient outcomes: a cohort study. Resuscitation. Published 5 March 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →