Evidence map›Paper›PMID 23412830›Full record

ArticleBMJ (Clinical research ed.)2013

Income inequality and 30 day outcomes after acute myocardial infarction, heart failure, and pneumonia: retrospective cohort study.

Peter K Lindenauer, Tara Lagu, Michael B Rothberg, Jill Avrunin, Penelope S Pekow, Yongfei Wang, Harlan M Krumholz

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Article in BMJ (Clinical research ed.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
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58citing papers in PubMed, 2 pooled it
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  5. Racial Disparities in 7-Day Readmissions from an Adult Hospital Medicine Service.Journal of racial and ethnic health disparities · 2022
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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Peter K LindenauerCenter for Quality of Care Research, Baystate Medical Center, Springfield, MA 01199, USA.
Tara Lagu
Michael B Rothberg
Jill Avrunin
Penelope S Pekow
Yongfei Wang
Harlan M Krumholz

Funding

Center for Cardiovascular Outcomes Research at Yale UniversityU01HL105270 · NHLBI · YALE UNIVERSITY · PI CURTIS, JEPTHA PELHAM, KRUMHOLZ, HARLAN MARC · 2010 to 2013
$5.8M
NHLBI NIH HHS U01 HL105270NHLBI NIH HHS U01 HL105270-02
6 · The paper itself

Abstract

objectivesTo examine the association between income inequality and the risk of mortality and readmission within 30 days of hospitalization.

designRetrospective cohort study of Medicare beneficiaries in the United States. Hierarchical, logistic regression models were developed to estimate the association between income inequality (measured at the US state level) and a patient's risk of mortality and readmission, while sequentially controlling for patient, hospital, other state, and patient socioeconomic characteristics. We considered a 0.05 unit increase in the Gini coefficient as a measure of income inequality.

settingUS acute care hospitals.

participantsPatients aged 65 years and older, and hospitalized in 2006-08 with a principal diagnosis of acute myocardial infarction, heart failure, or pneumonia.

main outcome measuresRisk of death within 30 days of admission or rehospitalization for any cause within 30 days of discharge. The potential number of excess deaths and readmissions associated with higher levels of inequality in US states in the three highest quarters of income inequality were compared with corresponding data in US states in the lowest quarter.

resultsMortality analyses included 555,962 admissions (4348 hospitals) for acute myocardial infarction, 1,092,285 (4484) for heart failure, and 1,146,414 (4520); readmission analyses included 553,037 (4262), 1,345,909 (4494), and 1,345,909 (4524) admissions, respectively. In 2006-08, income inequality in US states (as measured by the average Gini coefficient over three years) varied from 0.41 in Utah to 0.50 in New York. Multilevel models showed no significant association between income inequality and mortality within 30 days of admission for patients with acute myocardial infarction, heart failure, or pneumonia. By contrast, income inequality was associated with rehospitalization (acute myocardial infarction, risk ratio 1.09 (95% confidence interval 1.03 to 1.15), heart failure 1.07 (1.01 to 1.12), pneumonia 1.09 (1.03 to 1.15)). Further adjustment for individual income and educational achievement did not significantly attenuate these findings. Over the three year period, we estimate an excess of 7153 (2297 to 11,733) readmissions for acute myocardial infarction, 17,991 (3410 to 31,772) for heart failure, and 14,127 (4617 to 23,115) for pneumonia, that are associated with inequality levels in US states in the three highest quarters of income inequality, compared with US states in the lowest quarter.

conclusionsAmong patients hospitalized with acute myocardial infarction, heart failure, and pneumonia, exposure to higher levels of income inequality was associated with increased risk of readmission but not mortality. In view of the observational design of the study, these findings could be biased, owing to residual confounding.

Indexed as

Health Status DisparitiesPovertyAgedAged, 80 and overCohort StudiesFemaleHeart FailureHumansLogistic ModelsMaleMultivariate AnalysisMyocardial InfarctionPatient ReadmissionPneumoniaRetrospective StudiesRisk Factors

Identifiers

PMID23412830
PMCPMC3573180

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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.