Cardiac arrest & resuscitation
Evaluation of Socioeconomic Position and Survival After Out-of-Hospital Cardiac Arrest in Korea Using Structural Equation Modeling
Authors' conclusion
In this cohort study of patients with OHCA, lower individual SEP was significantly associated with lower survival to discharge.
Study context
- Population
- Adults with out-of-hospital cardiac arrest (OHCA) of presumed cardiac etiology in Korea (universal health insurance), 2013–2019
- Participants
- 121,516 adults
- Exposure
- Lower individual socioeconomic position (SEP) vs highest SEP
- Outcome
- Survival to discharge
Methodological detailsstructural equation modeling, nationwide, Data collected January 2013 to December 2019; analysed January 2022 to February 2023
- Structural equation modeling
- Nationwide
- Data collected January 2013 to December 2019; analysed January 2022 to February 2023
Main finding
As reported in the abstract
AOR for survival to discharge (95% CI)
NHI Q2 vs NHI Q1
0.97(0.94–1.00)
NHI Q3 vs NHI Q1
0.88(0.85–0.91)
NHI Q4 vs NHI Q1
0.91(0.88–0.94)
MA vs NHI Q1
0.53(0.50–0.56)
Observational data: associations, not effects.
Further findings
Mediating proportions of SEP–survival association, total population
- Witnessed status
- 15.1% (95% CI, 11.8%-18.4%)
- Bystander CPR provision
- 4.8% (95% CI, 3.5%-6.0%)
- Initial rhythm
- 41.8% (95% CI, 35.4%-48.1%)
- ED level
- 9.4% (95% CI, 7.4%-11.4%)
- Structural equation modeling
Mediating proportions, patients surviving to hospital admission (subgroup)
- Witnessed status
- 11.8% (95% CI, 6.7%-16.9%)
- Bystander CPR provision
- 3.7% (95% CI, 1.3%-6.1%)
- Initial rhythm
- 56.2% (95% CI, 41.0%-71.4%)
- ED level
- 10.7% (95% CI, 6.1%-15.3%)
- Coronary angiography
- 20.2% (95% CI, 14.0%-26.5%)
- TTM
- 4.2% (95% CI, 2.2%-6.1%)
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Evaluation of Socioeconomic Position and Survival After Out-of-Hospital Cardiac Arrest in Korea Using Structural Equation Modeling. JAMA Netw Open. Published 1 May 2023. doi:10.
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