Evidence map›Paper›PMID 34806171›Full record

ArticleHealth services research2022

Prescribing of low- versus high-cost Part B drugs in Medicare Advantage and traditional Medicare.

Kelly E Anderson, Daniel Polsky, Sydney Dy, Aditi P Sen

Open access · greenAbstract read
In one paragraph

Article in Health services research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Use of Low-Value Cancer Treatments in Medicare Advantage Versus Traditional Medicare.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2025
    Article
  5. Article
  6. Osteoporosis testing and treatment remain low in both Traditional Medicare and Medicare Advantage.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Kelly E AndersonDepartment of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.ORCID 0000-0002-1471-6283
Daniel PolskyDepartment of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins Carey Business School, Hopkins Business of Health Initiative, Baltimore, Maryland, USA.
Sydney DyDepartment of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins School of Medicine, Division of General Internal Medicine, Baltimore, Maryland, USA.
Aditi P SenDepartment of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.ORCID 0000-0002-7203-2736
Johns Hopkins University · US

Funding

TRAINING IN HEALTH SERVICES RESEARCHT32HS000029 · AHRQ · JOHNS HOPKINS UNIVERSITY · PI DY, SYDNEY MORSS · 1987 to 2024
$8.3M
AHRQ HHS T32 HS000029
6 · The paper itself

Abstract

objectiveExamine whether Medicare Advantage (MA) coverage is associated with more efficient prescribing of Part B drugs than traditional Medicare (TM) coverage. DATA SOURCES: Twenty percent sample of 2016 outpatient and carrier TM claims and MA encounter records and Master Beneficiary Summary File data. STUDY

designWe analyzed whether MA enrollees compared to TM enrollees more often received the low-cost Part B drug in four clinical scenarios where multiple similarly effective drugs exist: (1) anti-VEGF agents to treat macular degeneration, (2) bone resorption inhibitors for osteoporosis, (3) bone resorption inhibitors for malignant neoplasms, and (4) intravenous iron for iron deficiency anemia. We then estimated differences in spending if TM prescribing aligned with MA prescribing. Finally, using linear probability models, we examined whether differences in MA and TM prescribing patterns were attributable to differences in the hospitals and clinician practices who treat MA and TM enrollees or differences in how these hospitals and clinician practices treat their MA versus TM patients. DATA COLLECTION/EXTRACTION

methodsNot applicable. PRINCIPAL

findingsIn all cases, a larger share of MA enrollees received the low-cost drug compared to TM enrollees, ranging from 8 percentage points higher for anemia to 16 percentage points higher for macular degeneration in the unadjusted analysis. Results were similar in regression analyses controlling for enrollee characteristics and market factors (5-13 percentage points). If TM prescribing matched MA prescribing, we estimated savings ranging from 6% to 20% of TM spending for each scenario. Differences in prescribing patterns were driven both by MA enrollees receiving treatment at more efficient hospitals and clinician practices and hospitals and clinician practices more often prescribing low-cost drugs to their MA patients.

conclusionsOur findings show MA enrollees were more likely than TM enrollees to receive low-cost Part B drugs in four clinical scenarios where multiple similarly or equally effective treatment options exist.

Indexed as

Bone Density Conservation AgentsMacular DegenerationMedicare Part CAgedDrug CostsHospitalsHumansUnited StatesBone Density Conservation Agentsdrug costsMedicareMedicare Part B/economicsMedicare Part Cprescription drugsreimbursement mechanisms

Identifiers

PMID34806171
PMCPMC9108062
OpenAlexW3216993032

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.