Evaluation of self-reported and registry-based influenza vaccination status in a Wisconsin cohort.
We evaluated influenza vaccination status as determined by self-report and a regional, real-time immunization registry during two influenza seasons when subjects were enrolled in a study to estimate vaccine effectiveness. We enrolled 2907 patients during the two consecutive seasons. The sensitivity and specificity of self-reported influenza vaccination when compared to immunization registry records were 95% and 90%, respectively. The positive predictive value of self-reported vaccination was 89% and negative predictive value was 96%. In our study population, self-reported influenza vaccine status was a sensitive and fairly specific indicator of actual vaccine status. Misclassification was more common among young children.
Irving
Stephanie A
SA
Marshfield Clinic Research Foundation, 1000 North Oak Avenue, Marshfield, WI 54449, USA. irving.stephanie@marshfieldclinic.org
Donahue
James G
JG
Shay
David K
DK
Ellis-Coyle
Tina L
TL
Belongia
Edward A
EA
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007223:Infant; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012042:Registries / Q000706:statistics & numerical data*; D014922:Wisconsin / Q000453:epidemiology; D055815:Young Adult
D007252:Influenza Vaccines