Heart failure & cardiomyopathies
Impact of the method of calculating 30-day readmission rate after hospitalization for heart failure. Data from the VancOuver CoastAL Acute Heart Failure (VOCAL-AHF) registry
Authors' conclusion
Calculated 30-day readmission rates varied more than two-fold by altering methods.
Study context
- Population
- Patients discharged after heart failure (HF) hospitalization, VOCAL-AHF registry
- Participants
- 1,835 patients
- Exposure
- 64 definitions of 30-day readmission rate
- Outcome
- HF and all-cause 30-day readmission rates by definition
- Follow-up
- 30 days
Methodological detailsregistry-based, methodological comparison of 64 definitions
- Registry-based
- Methodological comparison of 64 definitions
Main finding
As reported in the abstract
30-day readmission rate across definitions
- HF readmission rate range (varied more than two-fold)
- 6.5-15.0%
- All-cause readmission rate range
- 18.8-29.9%
- All consecutive index admissions: HF
- 11.1-15.0%
- All consecutive index admissions: all-cause
- 24.0-29.9%
- One index admission per patient per year: HF
- 6.5-11.3%
- One index admission per patient per year: all-cause
- 18.8-22.7%
- Multiple index admissions, no 30-day blanking vs blanking: higher readmission rates
- 2.3%
- Single admission per year, first-in-year: lower readmission rates
- 1.5%
- Single admission per year, random sampling: lower readmission rates (P < 0.001)
- 5.2%
Observational data: associations, not effects.
Original publication
Impact of the method of calculating 30-day readmission rate after hospitalization for heart failure. Data from the VancOuver CoastAL Acute Heart Failure (VOCAL-AHF) registry. Eur Heart J Qual Care Clin Outcomes. Published 12 April 2024. doi:10.
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