ArticleHealth affairs (Project Hope)2021
Higher Medicare Advantage Star Ratings Are Associated With Improvements In Patient Outcomes.
Article in Health affairs (Project Hope), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed.
- From Disappointment to Predominance: Medicare Advantage's Ascendancy and Transformation of Medicare.The Milbank quarterly · 2025Article
- Zero-premium Medicare Advantage plans: trends in areas with socioeconomic vulnerability and health needs.Health affairs scholar · 2025Article
- Older adults living with dementia enrolled in similar Medicare Advantage plans compared to those without dementia.Alzheimer's & dementia. Behavior & socioeconomics of aging · 2025Article
- Association of Social Vulnerability and Access to Higher Quality Medicare Advantage Plans.Journal of general internal medicine · 2025Article
- The influence of medication adherence on Medicare Star Ratings: A decade-long analysis of health plan performance.Journal of managed care & specialty pharmacy · 2025Article
- No Association Between Medicare Advantage Providers' Network Restrictiveness and Star Rating Between 2013 and 2017: An Observational Study.Journal of general internal medicine · 2025Observational
- Medicare Advantage Plan Star Ratings and County Social Vulnerability.JAMA network open · 2024Article
- "The reputation premium": does hospital ranking improvement lead to a higher healthcare spending?The European journal of health economics : HEPAC : health economics in prevention and care · 2023Article
- Effects of Part D Star Ratings on racial and ethnic disparities in health care costs.Exploratory research in clinical and social pharmacy · 2023Article
- The impact of hospital price and quality transparency tools on healthcare spending: a systematic review.Health economics review · 2022Review
- Association of Health Insurance Literacy With Enrollment in Traditional Medicare, Medicare Advantage, and Plan Characteristics Within Medicare Advantage.JAMA network open · 2022Article
- Association of Public Reporting of Medicare Dialysis Facility Quality Ratings With Access to Kidney Transplantation.JAMA network open · 2021Article
- Physician Network Breadth and Plan Quality Ratings in Medicare Advantage.JAMA health forum · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
Little is known about how well the Centers for Medicare and Medicaid Services' five-star rating system for the overall quality of Medicare Advantage (MA) contracts captures quality of care. Leveraging contract consolidation as a natural experiment to study the association between outcomes and insurer-initiated enrollee shifts to plans with higher-rated contracts, we found that enrollees experiencing a one-star MA rating increase were 20.8 percent less likely to voluntarily leave their plan to enroll in another plan or traditional Medicare. When hospitalized, they were 3.4 percent more likely to use a higher-quality hospital and 2.6 percent less likely to be readmitted within ninety days. Our findings suggest that MA star ratings may capture key domains of an MA plan's quality; however, the differences in outcomes that they capture might not all be clinically meaningful.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.