ArticleHealth services research2023
Effects of Medicare eligibility and enrollment at age 65 years on the use of high-value and low-value care.
Article in Health services research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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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
10 citing papers in PubMed, 14 citations in OpenAlex.
- How did exposure to critical access hospitals change Medicare's effect on cancer survival?Cancer causes & control : CCC · 2026Article
- Factors associated with angiotensin II stimulating vs. inhibiting antihypertensive drug use in older adults.BMC geriatrics · 2026Article
- Cost and transportation barrier trends related to Affordable Care Act among cancer survivors and atherosclerotic cardiovascular disease patients.PLOS global public health · 2026Article
- Does Low-Value Care Explain Health Care Utilization Inequities Among Asian and Latino Populations?Health services research · 2025Article
- Medicare Eligibility and Health Care Use Among Adults With Psychological Distress.JAMA health forum · 2025Article
- Health Care Utilization Patterns Among Adults With or Without Functional Disabilities.JAMA network open · 2025Article
- Effects of Medicare eligibility at age 65 years on affordability of care and food insecurity.Journal of the American Geriatrics Society · 2023Article
- Differences in use of high- and low-value health care between immigrant and US-born adults.Health services research · 2023Article
- Association between Medicare eligibility at age 65 years and in-hospital treatment patterns and health outcomes for patients with trauma: regression discontinuity approach.BMJ (Clinical research ed.) · 2023Article
- Effects of Medicare eligibility and enrollment at age 65 years on the use of high-value and low-value care.Health services research · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 3 institutions in 3 countries.
Funding
Abstract
objectiveTo examine the effects of Medicare eligibility and enrollment on the use of high-value and low-value care services. DATA SOURCES/STUDY
settingThe 2002-2019 Medical Expenditure Panel Survey. STUDY
designWe employed a regression discontinuity design, which exploits the discontinuity in eligibility for Medicare at age 65 and compares individuals just before and after age 65. Our primary outcomes included the use of high-value care services (eight services) and low-value care services (seven services). To examine the effects of Medicare eligibility, we conducted a regression discontinuity analysis. To examine the effects of Medicare enrollment, we used the discontinuity in the probability of having Medicare coverage around the age eligibility cutoff and conducted an instrumental variable analysis. DATA COLLECTION/EXTRACTION
methodsN/A. PRINCIPAL
findingsMedicare eligibility and enrollment led to statistically significant increases in the use of only two high-value services: cholesterol measurement [2.1 percentage points (95%: 0.4-3.7) (2.2% relative change) and 2.4 percentage points (95%: 0.4-4.4)] and receipt of the influenza vaccine [3.0 percentage points (95%: 0.3-5.6) (6.0% relative change) and 3.6 percentage points (95%: 0.4-6.8)]. Medicare eligibility and enrollment led to statistically significant increases in the use of two low-value services: antibiotics for acute upper respiratory infections [6.9 percentage points (95% CI: 0.8-13.0) (24.0% relative change) and 8.2 percentage points (95% CI: 0.8-15.5)] and radiographs for back pain [4.6 percentage points (95% CI: 0.1-9.2) (36.8% relative change) and 6.2 percentage points (95% CI: 0.1-12.3)]. However, there was no significant change in the use of other high-value and low-value care services.
conclusionMedicare eligibility and enrollment at age 65 years led to increases in the use of some high-value and low-value care services, but there were no changes in the use of the majority of other services. Policymakers should consider refining the Medicare program to enhance the value of care delivered.
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What OpenQuestion holds
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.