Evidence map›Paper›PMID 22093435›Full record

ArticleAnnals of emergency medicine2012

System-level health disparities in California emergency departments: minorities and Medicaid patients are at higher risk of losing their emergency departments.

Renee Y Hsia, Tanja Srebotnjak, Hemal K Kanzaria, Charles McCulloch, Andrew D Auerbach

Abstract read
In one paragraph

Article in Annals of emergency medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–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

21 citing papers in PubMed.

  1. Community Characteristics Associated With Health System Penetration.Medical care research and review : MCRR · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Renee Y HsiaDepartment of Emergency Medicine, San Francisco, CA, USA.
Tanja Srebotnjak
Hemal K Kanzaria
Charles McCulloch
Andrew D Auerbach

Funding

CTSA: K12 COMPONENTKL2RR024130 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHNSTON, S. CLAIBORNE · 2006 to 2011
$19.3M
Improving management of cardiovascular medications during hospitalizationK24HL098372 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI AUERBACH, ANDREW D · 2010 to 2014
$887k
NCRR NIH HHS KL2 RR024130NHLBI NIH HHS K24 HL098372NHLBI NIH HHS K24HL098372
6 · The paper itself

Abstract

STUDY

objectiveEmergency department (ED) closures threaten community access to emergency services, but few data exist to describe factors associated with closure. We evaluate factors associated with ED closure in California and seek to determine whether hospitals serving more vulnerable populations have a higher rate of ED closure.

methodsThis was a retrospective cohort study of California hospital EDs between 1998 and 2008, using hospital- and patient-level data from the California Office of Statewide Health Planning and Development (OSHPD), as well as OSHPD patient discharge data. We examined the effects of hospital and patient factors on the hospital's likelihood of ED closure by using Cox proportional hazards models.

resultsIn 4,411 hospital-years of observation, 29 of 401 (7.2%) EDs closed. In a model adjusted for total ED visits, hospital discharges, trauma center and teaching status, ownership, operating margin, and urbanicity, hospitals with more black patients (hazard ratio [HR] 1.41 per increase in proportion of blacks by 0.1; 95% confidence interval [CI] 1.16 to 1.72) and Medi-Cal recipients (HR 1.17 per increase in proportion insured by Medi-Cal by 0.1; 95% CI 1.02 to 1.34) had higher risk of ED closure, as did for-profit institutions (HR 1.65; 95% CI 1.13 to 2.41).

conclusionThe population served by EDs and hospitals' profit model are associated with ED closure. Whether our findings are a manifestation of poorer reimbursement in at-risk EDs is unclear.

Indexed as

Emergency Service, HospitalHealthcare DisparitiesMedicaidMinority GroupsCaliforniaHealth Facility ClosureHumansInsurance, HealthProportional Hazards ModelsRacial GroupsRetrospective StudiesTrauma CentersUnited States

Identifiers

PMID22093435
PMCPMC4636219

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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.