Cardio-oncology & otherCohort study

Accountable Care Organization Participation and Cardiovascular Care Quality

JAMA CardiolPublished

  • Pre-post cohort study
  • adjusted for secular trends

Authors' conclusion

Participation in an MSSP ACO was not found to be associated with early improvement in quality measures at outpatient cardiology practices.

Study context

Population
Patients at outpatient cardiology practices, NCDR PINNACLE Registry, January 1, 2013, through March 31, 201983 ACO vs 332 non-ACO practices
Exposure
Medicare Shared Savings Program (MSSP) ACO participation vs non-ACO cardiology practices
  • ACOn = 83 practices; 2,390,244 patients
  • Non-ACOn = 332 practices; 5,415,880 patientsreference
Outcome
15 quality measures for CAD, HF, AF and hypertension

Main finding

As reported in the abstract

  • MSSP ACO participation not associated with differential changes in performance measures for CAD, HF, AF and hypertension

Observational data: associations, not effects.

Further findings

OutcomeaOR (95% CI)P value
ICD use (subset of traditional Medicare patients) · 12 months · increase following ACO participation · subset of traditional Medicare patients1.66 (1.12–2.45)P = 0.01

β-blocker use for HF (exploratory, follow-up extended to 24 months)

Increase in β-blocker use for HF with ACO participation, aOR
1.23 (95% CI 1.02-1.49; P = .03)
  • exploratory analysis

Low-density lipoprotein (LDL) profiles <100 mg/dL for CAD (exploratory, follow-up extended to 24 months)

Decline in LDL profiles <100 mg/dL with ACO participation, aOR
0.71 (95% CI 0.51-0.999; P = .049)
  • exploratory analysis

Original publication

Accountable Care Organization Participation and Cardiovascular Care Quality. JAMA Cardiol. Published 1 June 2025. doi:10.1001/jamacardio.2025.0381

Summarised from the published abstract; every number is checked against it