Factors influencing acceptance of influenza vaccination given in an ED

Factors correlating with successful administration of flu vaccine in an emergency department (ED) were examined. Patients 18 years and older were screened for indications for flu immunization. Vaccine was offered to those with indications. Of 3425 patients screened, 1311 had indications, 705 of 1311 agreed to immunization, and 513 of 705 were immunized. Factors related to immunization agreement were comorbidity, interviewer, and being 50 to 64 years old with prior immunization. Immunization factors were month, comorbidity, and not being pregnant. Factors associated with suboptimal acceptance and receipt should be addressed in future efforts.