Evidence map›Paper›PMID 25583886›Full record

Observational studyAnnals of family medicine

An early look at rates of uninsured safety net clinic visits after the Affordable Care Act.

Heather Angier, Megan Hoopes, Rachel Gold, Steffani R Bailey, Erika K Cottrell, John Heintzman, Miguel Marino, Jennifer E DeVoe

2 registry-linked trialsOpen access · diamondAbstract readObservational Study
In one paragraph

Observational study in Annals of family medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
48.5field-weighted citation impact, top 1% 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.

NCT02298361 completednot on this map

Innovative Methods for Parents And Clinics to Create Tools (IMPACCT) for Kids' Care

TypeobservationalSponsorOCHIN, Inc.Ran2013 to 2016Enrolled27,251ConditionsInsurance Status/StabilityArmsHealth insurance outreach IT tools
NCT02355262 completednot on this map

Community-Based HIT Tools for Cancer Screening and Health Insurance Promotion (CATCH-UP)

TypeobservationalSponsorOHSU Knight Cancer InstituteRan2014 to 2020Enrolled45ConditionsBreast Carcinoma, Cervical Carcinoma, Colorectal Carcinoma, Health Status UnknownArmsInformational Intervention
3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
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  5. Cervical Cancer Screening and Prevention among Latinas in the United States among a Network of Community Health Centers.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2026
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  9. Obamacare: A bibliometric perspective.Frontiers in public health · 2022
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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

8 authors at 2 institutions in 1 country.

Heather AngierOregon Health & Science University, Portland, Oregon angierh@ohsu.edu.
Megan HoopesOCHIN, Inc, Portland, Oregon.
Rachel GoldOCHIN, Inc, Portland, Oregon Kaiser Permanente Northwest Center for Health Research, Portland, Oregon.
Steffani R BaileyOregon Health & Science University, Portland, Oregon.
Erika K CottrellOregon Health & Science University, Portland, Oregon OCHIN, Inc, Portland, Oregon.
John HeintzmanOregon Health & Science University, Portland, Oregon.
Miguel MarinoOregon Health & Science University, Portland, Oregon.
Jennifer E DeVoeOregon Health & Science University, Portland, Oregon OCHIN, Inc, Portland, Oregon.
Ochin · USOregon Health & Science University · US

Funding

Community-based HIT Tools for Cancer Screening and Health Insurance PromotionR01CA181452 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI DEVOE, JENNIFER E · 2014 to 2018
$3.1M
The Primary Care Medical Home and Preventive Service Use in Latino ImmigrantsK08HS021522 · AHRQ · OREGON HEALTH & SCIENCE UNIVERSITY · PI HEINTZMAN, JOHN · 2013 to 2016
$590k
AHRQ HHS K08 HS021522NCI NIH HHS 1 R01 CA181452 01NCI NIH HHS R01 CA181452
6 · The paper itself

Abstract

purposeThe Affordable Care Act of 2010 supports marked expansions in Medicaid coverage in the United States. As of January 1, 2014, a total of 25 states and the District of Columbia expanded their Medicaid programs. We tested the hypothesis that rates of uninsured safety net clinic visits would significantly decrease in states that implemented Medicaid expansion, compared with states that did not.

methodsWe undertook a longitudinal observational study of coverage status for adult visits in community health centers, from 12 months before Medicaid expansion (January 1, 2013 to December 31, 2013) through 6 months after expansion (January 1, 2014 to June 30, 2014). We analyzed data from 156 clinics in the OCHIN practice-based research network, with a shared electronic health record, located in 9 states (5 expanded Medicaid coverage and 4 did not).

resultsAnalyses were based on 333,655 nonpregnant adult patients and their 1,276,298 in-person billed encounters. Overall, clinics in the expansion states had a 40% decrease in the rate of uninsured visits in the postexpansion period and a 36% increase in the rate of Medicaid-covered visits. In contrast, clinics in the nonexpansion states had a significant 16% decline in the rate of uninsured visits but no change in the rate of Medicaid-covered visits.

conclusionsThere was a substantial decrease in uninsured community health center visits and a significant increase in Medicaid-covered visits in study clinics in states that expanded Medicaid in 2014, whereas study clinics in states opting out of the expansion continued to have a high rate of uninsured visits. These findings suggest that Affordable Care Act-related Medicaid expansions have successfully decreased the number of uninsured safety net patients in the United States.

Indexed as

AdultCommunity Health CentersFemaleHealth Services AccessibilityHumansLongitudinal StudiesMaleMedicaidMedically UninsuredMiddle AgedPatient Protection and Affordable Care ActPrimary Health CareSafety-net ProvidersUnited StatesYoung AdultAffordable Care Actpractice-based researchprimary caresafety net clinicsuninsured

Identifiers

PMID25583886
PMCPMC4291259
OpenAlexW2180226266

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.