Table 3 Influenza- and influenza vaccination-related knowledge among unvaccinated (n = 429) and vaccinated (n = 586) at-risk participants, Germany 2014

Coughing or sneezing inside of the elbow can reduce the risk of influenza infection

Not vaccinated

68.7 (62.9–73.9)

-

Vaccinated

72.4 (66.5–77.7)

≥0.05

Regular hand-washing with soap can reduce the risk of influenza infection

Not vaccinated

91.7 (87.7–94.5)

-

Vaccinated

93.9 (88.7–96.8)

≥0.05

Vaccination cannot cause influenza infection

Not vaccinated

38.5 (33.1–44.3)

-

Vaccinated

58.2 (51.5–64.6)

<0.01 **

Vaccination protects people in close surroundings

Not vaccinated

44.4 (38.7–50.2)

-

Vaccinated

55.2 (48.5–61.8)

<0.05 *

After immunization or infection with influenza, vaccination in subsequent influenza season is necessary

Not vaccinated

74.3 (68.8–79.1)

-

Vaccinated

79.7 (73.5–84.8)

≥0.05