Evidence map›Paper›PMID 34318499›Full record

ArticleHealth services research2022

Long-run growth of ambulatory surgery centers 1990-2015 and Medicare payment policy.

Elizabeth L Munnich, Michael R Richards

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 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
5.3field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
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  9. Observational
  10. Peripheral Arterial Disease Treatment in the Non-Hospital Setting.Seminars in interventional radiology · 2023
    Review
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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

2 authors at 2 institutions in 1 country.

Elizabeth L MunnichDepartment of Economics, College of Business, University of Louisville, Louisville, Kentucky, USA.ORCID 0000-0003-3149-9468
Michael R RichardsDepartment of Economics, Hankamer School of Business, Baylor University, Waco, Texas, USA.ORCID 0000-0003-1743-908X
Baylor University · USUniversity of Louisville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine long-run growth in the ambulatory surgery center (ASC) industry and potential factors influencing its trajectory. DATA SOURCES: National data for all Medicare-certified ASCs (1990-2015) and outpatient discharge records from the state of Florida in 2007. STUDY

designWe documented the number of ASCs in the United States over time and decomposed the trend into underlying ASC market entry and exit behavior. We then examined the plausibility of 2008 Medicare payment reforms to influence the trend changes. DATA EXTRACTION

methodsData on ASC openings and closures are obtained from the Centers for Medicare and Medicaid Services Provider of Service files. Secondary data on ASC volume in Florida are obtained from the Florida Agency for Health Care Administration. PRINCIPAL

findingsThe number of ASCs in the United States grew 5%-10% annually between 1990 and 2007 but by 1% or less beginning in 2008. This change coincided with substantive reductions in Medicare payments for key ASC services. The annual number of new ASCs was as much as 50% lower following the payment change.

conclusionsASCs are an important competitor for outpatient services, but growth has slowed dramatically. Sharp changes in new ASC entry align with less generous Medicare fees.

Indexed as

Ambulatory Care FacilitiesAmbulatory Surgical ProceduresCenters for Medicare and Medicaid Services, U.S.HumansMedicaidMedicareUnited Statesambulatory care facilitiesambulatory surgical proceduresfee scheduleshealth care sectorMedicare

Identifiers

PMID34318499
PMCPMC8763276
OpenAlexW3186670843

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.