Evaluation of self-reported and registry-based influenza vaccination status in a Wisconsin cohort

Vaccine. 2009 Nov 5;27(47):6546-9. doi: 10.1016/j.vaccine.2009.08.050. Epub 2009 Sep 1.


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.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Child
  • Child, Preschool
  • Cohort Studies
  • Female
  • Humans
  • Infant
  • Influenza Vaccines / administration & dosage*
  • Influenza, Human / epidemiology
  • Influenza, Human / prevention & control*
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Registries / statistics & numerical data*
  • Wisconsin / epidemiology
  • Young Adult


  • Influenza Vaccines