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Cited by 173

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Judging hospitals by severity-adjusted mortality rates: the influence of the severity-adjustment method.

Open access
Iezzoni, L I, Ash, A S, Shwartz, M, Daley, J, Hughes, J S, Mackiernan, Y D·1996·American Journal of Public Health

Abstract

OBJECTIVES: This research examined whether judgments about a hospital's risk-adjusted mortality performance are affected by the severity-adjustment method. METHODS: Data came from 100 acute care hospitals nationwide and 11880 adults admitted in 1991 for acute myocardial infarction. Ten severity measures were used in separate multivariable logistic models predicting in-hospital death. Observed-to-expected death rates and z scores were calculated with each severity measure for each hospital. RESULTS: Unadjusted mortality rates for the 100 hospitals ranged from 4.8% to 26.4%. For 32 hospitals, observed mortality rates differed significantly from expected rates for 1 or more, but not for all 10, severity measures. Agreement between pairs of severity measures on whether hospitals were flagged as statistical mortality outliers ranged from fair to good. Severity measures based on medical records frequently disagreed with measures based on discharge abstracts. CONCLUSIONS: Although the 10 severity measures agreed about relative hospital performance more often than would be expected by chance, assessments of individual hospital mortality rates varied by different severity-adjustment methods.

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Metadata

Authors
Iezzoni, L. I., Ash, A. S., Shwartz, M., Daley, J., Hughes, J. S., & Mackiernan, Y. D.
Venue
American Journal of Public Health
Published
1996-10
Volume
86
Issue
10
Pages
1379-1387
ISSN
  • 0090-0036 (ISSN-L)
  • 1541-0048
OpenAlex
W2072737565
Cited by
173
References
1
FWCI
24.40
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Judging hospitals by severity-adjusted mortality rates: the influence of the severity-adjustment method. https://app.cochat.ai/papers/10.2105/ajph.86.10.1379
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Iezzoni, L. I., Ash, A. S., Shwartz, M., Daley, J., Hughes, J. S., & Mackiernan, Y. D. (1996). Judging hospitals by severity-adjusted mortality rates: the influence of the severity-adjustment method. American Journal of Public Health. https://doi.org/10.2105/ajph.86.10.1379

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.