Acute cardiac care & resuscitationCohort study
Relation Between the Incidence of In-Hospital Cardiac Arrest and Survival in Older Patients
- Observational cohort study
- hospital-level analysis
- hierarchical multivariable regression
Authors' conclusion
Hospital IHCA incidence rates were only modestly correlated with IHCA survival rates, suggesting that hospital IHCA incidence rates can be considered an independent quality metric.
Study context
- Population
- Medicare patients ≥65 years with in-hospital cardiac arrest (IHCA) at Get With The Guidelines-Resuscitation hospitals, US, 2013–2019
- Participants
- 77,676 patients · 335 hospitals
- Outcome
- Correlation between hospital case-mix adjusted IHCA incidence and risk-standardized survival to discharge (RSSR)
Main finding
As reported in the abstract
Correlation of hospital IHCA incidence with RSSR
Correlation before hospital characteristics (ρ; P = 0.03)
−0.12
Correlation after additional adjustment for hospital variables (ρ; P = 0.13)
−0.08
Observational data: associations, not effects.
Further findings
Hospital IHCA incidence and RSSR (case-mix adjusted)
- Median IHCA incidence per 1,000 admissions (Q1-Q3 5.9-10.3; range 1.2-25.9)
- 7.9
- Median RSSR (Q1-Q3 19.5%-24.9%; range 11.5%-35.7%)
- 22.3%
Hospital variables
- Higher nurse-patient ratio the only modifiable variable significantly associated with lower IHCA incidence and higher RSSR
Original publication
Relation Between the Incidence of In-Hospital Cardiac Arrest and Survival in Older Patients. J Am Coll Cardiol. Published 8 July 2025. doi:10.1016/j.jacc.2025.04.067
Summarised from the published abstract; every number is checked against it