Accuracy of Surveys for Estimating Coverage for Hepatitis A and B Vaccinations in Adults

This study estimated accuracy of survey-reported hepatitis A and B vaccination among adults at increased risk. Survey responses from patients at 2 large health care systems in Colorado were compared with vaccination records in electronic health records and the state immunization registry. For hepatitis A vaccine, net bias was 5.6% (relative bias, 38.6%; sensitivity, 52.5%; specificity, 85.3%). For hepatitis B vaccine, net bias was 6.5% (relative bias, 28.6%; sensitivity, 43.4%; specificity, 75.1%). Despite low sensitivity, self-reported vaccination status may be sufficiently accurate for use in the development of vaccine policies and public health actions for improving hepatitis A and B coverage.