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Vaccine. 2010 Jul 19;28(32):5254-9. doi: 10.1016/j.vaccine.2010.05.061. Epub 2010 Jun 8.

Accuracy of influenza vaccination status in a computer-based immunization tracking system of a managed care organization.

Author information

  • 1Kaiser Permanente Southern California, 100 South Los Robles Ave., Pasadena, CA 91101, USA. lina.s.sy@kp.org

Abstract

Influenza vaccine safety and effectiveness studies conducted using electronic medical records rely on accurate assessment of influenza vaccination status. However, influenza immunization in non-traditional settings (e.g., the workplace) may not be captured in patient immunization tracking systems. We compared influenza vaccination status from electronic records with self-reported vaccination status for five hundred and two 50-79 years olds enrolled in a large managed care organization. Influenza vaccination status in the medical record had a high positive predictive value and specificity (both >99%). The negative predictive value was 80% and sensitivity was 78%. These data suggest that an electronic record of influenza vaccination reliably indicates immunization, while the absence of such a record is only moderately accurate, partly due to vaccines received in non-traditional settings.

(c) 2010 Elsevier Ltd. All rights reserved.

PMID:
20554065
[PubMed - indexed for MEDLINE]
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