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Validation of acute liver injury cases in a population-based cohort study of oral antimicrobial users
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2014 (English)In: Current Drug Safety, ISSN 1574-8863, Vol. 9, no 1, 23-28 p.Article in journal (Refereed) Published
Abstract [en]

We conducted a cohort study of acute, noninfectious liver injury among oral antimicrobial users. Potential cases were identified in the HealthCore Integrated Research Database (HIRD(SM)) population between July 1, 2001, and March 31, 2009, using ICD-9-CM codes primarily for acute and subacute necrosis of the liver, hepatic coma, and unspecified hepatitis.

Liver test results were used to confirm case status according to published criteria. Two physician reviewers experienced in studying acute liver injury (blinded to study drug exposures) evaluated data abstracted from hospital and emergency department records to validate potential cases. Of 715 potential cases having claims associated with any of the primary screening codes, 312 (44%) were valid cases, 108 (15%) were not cases, and 295 (41%) were of uncertain status (records inadequate for validation). Among potential cases with adequate medical records, the PPV for presence of any of the primary codes was 74% (95% CI, 70%-78%). The highest PPV for a single code was for acute and subacute necrosis of the liver (84%; 95% CI, 77%-90%).

Evaluation of cases of noninfectious liver injury using hospital and emergency department medical records continues to represent the preferred approach in studies using insurance claims data.

Place, publisher, year, edition, pages
2014. Vol. 9, no 1, 23-28 p.
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Family Medicine
URN: urn:nbn:se:uu:diva-237040DOI: 10.2174/15748863113086660051PubMedID: 24111729OAI: oai:DiVA.org:uu-237040DiVA: diva2:766142
Available from: 2014-11-26 Created: 2014-11-26 Last updated: 2014-11-26Bibliographically approved

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Wallander, Mari-Ann
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