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Current HIV Research

Editor-in-Chief

ISSN (Print): 1570-162X
ISSN (Online): 1873-4251

Diabetes Case Identification Methods Applied to Electronic Medical Record Systems: Their Use in HIV-Infected Patients

Author(s): Heidi M. Crane, Joseph B. Kadane, Paul K. Crane and Mari M. Kitahata

Volume 4, Issue 1, 2006

Page: [97 - 106] Pages: 10

DOI: 10.2174/157016206775197637

Price: $65

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Abstract

Objective: New onset diabetes mellitus type 2 is increasing among HIV-infected patients in the era of potent antiretroviral therapy. Accurately identifying HIV-infected patients with a diagnosis of diabetes in electronic medical record systems will facilitate the study of patients with this disease. Study Design And Setting: We examined electronic medical record data for all patients who initiated care at an HIV clinic between 1/1/1997 and 12/31/2001 to identify potential cases of diabetes. Case identification methods included clinician-coded diagnoses, medications, and HbA1c and glucose levels. Diabetes diagnoses were verified by clinician documentation in an electronic medical record progress note. Test characteristics of each case identification method were calculated. Results: 53 cases of diabetes were identified among the cohort of 1441 patients. Use of clinician-coded diagnoses alone or combined with other methods was the most sensitive method for identifying diabetes cases. Clinician-coded diagnoses were also the best method as assessed by standard receiver operator characteristic plots. A significant attenuation of odds ratios for associations with diabetes were found for case identification methods with imperfect specificity such as serum glucose levels. Conclusions: This study demonstrates that electronic medical record data can be used to accurately identify HIV-infected patients with diabetes. The optimal method applied will depend on the goals of a particular study.

Keywords: HIV, diabetes, electronic medical records


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