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      Outcomes and quality

      Helping to improve quality of care

      A father with his daughter

      Delivering quality care and improving health outcomes

      Patients should be able to trust the health care system to provide evidence-based care that promotes better outcomes and responds to individual needs and values. We analyze clinical data to advance our understanding of how to improve care quality and inform the services and solutions we provide.

      Improving outcomes and ensuring quality

      88%

      of Aetna Medicare Advantage members are in 4-star plans or higher in 2025

      1.9%

      Average A1C reduction supported by personalized member interventions through Transform Diabetes Care*

      44%

      Reduction in hospital admissions through Oak Street Health, compared to Medicare Benchmark*

      26x

      Increase in likelihood of members recommending their health plans when receiving a Signify Health In-Home Health Evaluation*

      Featured research

      Peer-reviewed article

      Associations between symptom-based long COVID clusters and long-term quality of life, work and daily activities among individuals testing positive for SARS-CoV

      Peer-reviewed article

      Women accessing care at a national network of retail health clinic

      Peer-reviewed article

      Telemedicine may increase visit completion rates in postpartum patients with preeclampsia

      Peer-reviewed article

      A quality improvement approach to develop an educational initiative for an age-friendly health system

      Conference abstract

      Impact of early mammography screening on time to diagnosis

      • *FOR TRANSFORM DIABETES CARE SOURCE: Commercial member, uncontrolled A1c (A1c >= 7.1) and has high-value diabetic care gap (if necessary can specify med opt metformin/med opt insulin gaps). Fully compliant means that the member closes all open care gaps. CVS Health Analytics, 2020. Actual results may vary depending on benefit plan design, member demographics, programs implemented by the plan and other factors. Client-specific modeling available upon request.

      • *FOR MEDICARE BENCHMARK SOURCE: Based on Oak Street Health’s hospital admission rates per thousand patients of 171 as of September 30, 2024, compared to the Medicare benchmark of 303.

      • *FOR SIGNIFY HEALTH IN-HOME HEALTH EVALUATION SOURCE: Information is based on 2023 data.