Patients were divided into two groups: 1) those that reported receiving the intramuscular (IM) influenza vaccine in the past 3 years; and 2) those that reported not receiving the IM influenza vaccine in the past 3 years. The survey responses were compared between the two groups. In addition, the subjects that reported receiving the IM vaccine in the past 3 years were asked to compare their experience with the IM vaccine versus the ID vaccine.