Evidence map›Paper›PMID 26587850›Full record

ArticleAnnals of surgery2016

Impact of Expanded Insurance Coverage on Racial Disparities in Vascular Disease: Insights From Massachusetts.

Andrew P Loehrer, Alexander T Hawkins, Hugh G Auchincloss, Zirui Song, Matthew M Hutter, Virendra I Patel

Abstract read
In one paragraph

Article in Annals of surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Racial and Socioeconomic Health Disparities in Peripheral Artery Disease.Journal of the American Heart Association · 2024
    Review
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  5. Article
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  12. Treatment of Acute Cholecystitis: Do Medicaid and Non-Medicaid Enrolled Patients Receive the Same Care?Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2020
    Article
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  16. Review
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  18. Observational
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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

6 authors.

Andrew P Loehrer*Department of Surgery, Massachusetts General Hospital, Boston, MA †Department of Medicine, Massachusetts General Hospital, Boston, MA ‡National Bureau of Economic Research, Cambridge, MA.
Alexander T Hawkins
Hugh G Auchincloss
Zirui Song
Matthew M Hutter
Virendra I Patel

Funding

Provider Payment Reform and Implications for Health Care CostsF30AG039175 · NIA · HARVARD MEDICAL SCHOOL · PI SONG, ZIRUI · 2010 to 2014
$161k
NIA NIH HHS F30 AG039175NIA NIH HHS F30-AG039175
6 · The paper itself

Abstract

objectiveTo evaluate the impact of health insurance expansion on racial disparities in severity of peripheral arterial disease.

backgroundLack of insurance and non-white race are associated with increased severity, increased amputation rates, and decreased revascularization rates in patients with peripheral artery disease (PAD). Little is known about how expanded insurance coverage affects disparities in presentation with and management of PAD. The 2006 Massachusetts health reform expanded coverage to 98% of residents and provided the framework for the Affordable Care Act.

methodsWe conducted a retrospective cohort study of nonelderly, white and non-white patients admitted with PAD in Massachusetts (MA) and 4 control states. Risk-adjusted difference-in-differences models were used to evaluate changes in probability of presenting with severe disease. Multivariable linear regression models were used to evaluate disparities in disease severity before and after the 2006 health insurance expansion.

resultsBefore the 2006 MA insurance expansion, non-white patients in both MA and control states had a 12 to 13 percentage-point higher probability of presenting with severe disease (P < 0.001) than white patients. After the expansion, measured disparities in disease severity by patient race were no longer statistically significant in Massachusetts (+3.0 percentage-point difference, P = 0.385) whereas disparities persisted in control states (+10.0 percentage-point difference, P < 0.001). Overall, non-white patients in MA had an 11.2 percentage-point decreased probability of severe PAD (P = 0.042) relative to concurrent trends in control states.

conclusionsThe 2006 Massachusetts insurance expansion was associated with a decreased probability of patients presenting with severe PAD and resolution of measured racial disparities in severe PAD in MA.

Indexed as

Health Status DisparitiesPatient Protection and Affordable Care ActAdolescentAdultAgedDatabases, FactualHealthcare DisparitiesHealth Care ReformHealth Services AccessibilityHumansInsurance CoverageInsurance, HealthLinear ModelsMassachusettsMiddle AgedMultivariate Analysis

Identifiers

PMID26587850
PMCPMC4777641

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Registered trials

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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.