Cardiac arrest & resuscitation
Does witness type affect the chance of receiving bystander CPR in out-of-hospital cardiac arrest?
Main finding · Bystander CPR administrationResult — go to the resultOdds ratio 0.83 95% CI 0.75–0.93Authors' conclusion
This study found differences in BCPR administration between family and non-family witnessed OHCA cases.
Study context
- Population
- Adult, layperson witnessed, non-traumatic out-of-hospital cardiac arrest (OHCA), Singapore, 2010–2020 (Pan-Asian Resuscitation Outcomes Study (PAROS) registry)
- Participants
- 10,016 eligible OHCA cases
- Exposure
- Non-family vs family witnessed OHCA
- Family witnessedn = 6,895reference
- Non-family witnessedn = 3,121
- Outcome
- Bystander CPR administration
Methodological detailsregistry-based, Details regarding witness type and bystander CPR were limited
- Registry-based
- Details regarding witness type and bystander CPR were limited
Main finding
As reported in the abstract
Odds ratio
0.83
95% CI 0.75–0.93
Non-family witnessed vs Family witnessed
OR 0.83 (95% CI 0.75–0.93)
Observational data: associations, not effects.
Further findings
| Outcome | OR (95% CI) | |
|---|---|---|
| BCPR administration, residential settings (location-stratified) | 0.75 (0.66–0.85) | |
| 0.512Odds ratio (log scale) |
Bystander CPR (BCPR) administration, non-residential settings (location-stratified)
- No statistically significant association between witness type and BCPR administration (OR 1.11, 95% CI 0.88, 1.39)
Original publication
Does witness type affect the chance of receiving bystander CPR in out-of-hospital cardiac arrest? Resuscitation. Published 14 June 2023. doi:10.
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