Evidence map›Paper›PMID 23425988›Full record

ArticleAcademic medicine : journal of the Association of American Medical Colleges2013

Does admission to a teaching hospital affect acute myocardial infarction survival?

Amol S Navathe, Jeffrey H Silber, Jingsan Zhu, Kevin G Volpp

Abstract read
In one paragraph

Article in Academic medicine : journal of the Association of American Medical Colleges, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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0cells of the map it votes in
2citing papers in PubMed
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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

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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

2 citing papers in PubMed.

  1. 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.

Amol S NavatheHarvard Medical School, Boston, Massachusetts 02115, USA. anavathe@partners.org
Jeffrey H Silber
Jingsan Zhu
Kevin G Volpp

Funding

Impact of resident work hour rules on errors and qualityR01HL082637 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI VOLPP, KEVIN G · 2005 to 2007
$1.6M
NHLBI NIH HHS R01 HL082637
6 · The paper itself

Abstract

purposePrevious studies have found that teaching hospitals produce better acute myocardial infarction (AMI) outcomes than nonteaching hospitals. However, these analyses generally excluded patients transferred out of nonteaching hospitals and did not study outcomes by patient risk level. The objective of this study was to determine whether admission to a teaching hospital was associated with greater survival after accounting for patient transfers and patient severity.

methodThis observational study used logistic models to examine the association between hospital teaching status and 30-day mortality of AMI patients, adjusting for patient comorbidities and common time trends. The sample included 1,309,554 Medicare patients admitted from 1996 to 2004 to 3,761 acute care hospitals for AMI. The primary outcome was 30-day all-cause, all-location mortality.

resultsMortality was slightly lower in minor teaching hospitals compared with nonteaching hospitals (odds ratio [OR] 0.97; 95% confidence interval [CI] 0.95-0.99) but not different between major teaching and nonteaching hospitals (OR 1.01; 95% CI 0.96-1.03). The odds of mortality in minor teaching hospitals decreased 4.2% relative to nonteaching hospitals during the seven-year period (OR from 0.98 to 0.94). There was no consistent pattern of association between teaching status and patient severity.

conclusionsAfter correctly accounting for the ability of nonteaching hospitals to appropriately transfer patients in need of different care, there was no survival benefit on average for initial admission to a teaching hospital for AMI. Further more, higher-risk patients did not benefit from initial admission to teaching hospitals.

Indexed as

HospitalizationHospitals, TeachingAgedFemaleHospital MortalityHumansLogistic ModelsMaleMyocardial InfarctionOutcome Assessment, Health CareRisk FactorsSeverity of Illness IndexSurvival Rate

Identifiers

PMID23425988
PMCPMC6029432

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