Cardiac arrest & resuscitation
Turnout time in smartphone alerting systems: underestimated entity in the development of smartphone-related dispatch algorithms
Authors' conclusion
The ToT has a relevant proportion of the response time until CFR arrive at the scene.
Study context
- Population
- Community first responders (CFR) alerted by the smartphone alerting system "Region of Lifesavers" for out-of-hospital cardiac arrest (OHCA), 01 August 2023 to 15 March 2024
- Participants
- 4,138 CFR operations
- Outcome
- Turnout time (ToT): interval between initial alert and departure to the scene (device leaving a 20 m fenced area from the alert acceptance point, Global Positioning System (GPS)-tracked)
Main finding
As reported in the abstract
Turnout time
Median ToT
1:45 min
Median response time (ToT = one third of response time)
5:22 min
Observational data: associations, not effects.
Further findings
| Outcome | Nighttime | Daytime | P value |
|---|---|---|---|
| Turnout time, nighttime vs daytimeSignificantly longer ToT at night; strongest influence | 2:22 min | 1:42 min | P < 0.001 |
Day of week, mode of transport, assigned task
- Minimal impact on ToT
Original publication
Turnout time in smartphone alerting systems: underestimated entity in the development of smartphone-related dispatch algorithms. Resuscitation. Published 13 August 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →