Accuracy of influenza vaccination status in a computer-based immunization tracking system of a managed care organization.
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.
Sy
Lina S
LS
Kaiser Permanente Southern California, 100 South Los Robles Ave., Pasadena, CA 91101, USA. lina.s.sy@kp.org
Liu
In-Lu Amy
IL
Solano
Zendi
Z
Cheetham
T Craig
TC
Lugg
Marlene M
MM
Greene
Sharon K
SK
Weintraub
Eric S
ES
Jacobsen
Steven J
SJ
D000368:Aged; D002140:California; D003430:Cross-Sectional Studies; D057286:Electronic Health Records / Q000592:standards*; D005260:Female; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male; D008329:Managed Care Programs / Q000706:statistics & numerical data; D008875:Middle Aged; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D014611:Vaccination / Q000706:statistics & numerical data*
D007252:Influenza Vaccines