Cardiac arrest & resuscitation
Effect of bystander cardiopulmonary resuscitation type on 1-month survival in drowning following out-of-hospital cardiac arrest in natural water bodies: a nationwide retrospective cohort study
Authors' conclusion
In cases of drowning following OHCA in natural water bodies, both conventional CPR and hands-only CPR indicated a beneficial causal effect on 1-month survival compared to no-BCPR, with conventional CPR showing greater causal effect.
Study context
- Population
- Drowning following out-of-hospital cardiac arrest (OHCA) in natural water bodies (e.g., sea, river/pond), Japan, 2016–2022eligible for analysis
- Participants
- 3,914 participants
- Exposure
- Hands-only CPR or conventional CPR vs no bystander CPR
- no-BCPRn = 2,633reference
- Hands-only CPRn = 1,049
- Conventional CPRn = 232
- Outcome
- 1-month survival
- Follow-up
- 1 month
Methodological detailsnationwide registry, multivariable logistic regression
- Nationwide registry
- Multivariable logistic regression
Main finding
As reported in the abstract
AOR for 1-month survival (95% CI)
Conventional CPR vs no-BCPR
3.70(2.31–5.93)
Hands-only CPR vs no-BCPR
1.74(1.19–2.54)
Hands-only CPR and conventional CPRcomparison as printed: "hands-only CPR and conventional CPR was positively associated with 1-month survival"
2.13(1.41–3.23)
Observational data: associations, not effects.
Original publication
Effect of bystander cardiopulmonary resuscitation type on 1-month survival in drowning following out-of-hospital cardiac arrest in natural water bodies: a nationwide retrospective cohort study. Resuscitation. Published 1 April 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →