Table 1 Questions asked in this study

I.

Of those who had received an influenza vaccination, we inquired about reasons for receiving vaccination (allowing each respondent to give as many answers as they wished

1.

Wanted to avoid becoming infected with influenza virus.

2.

Even if infected with influenza, wanted to prevent the symptoms from becoming serious.

3.

Living with family members at high risk of influenza becoming serious such as children, the elderly or pregnant women.

4.

Received financial assistance for vaccination.

5.

At high risk of becoming infected with influenza.

6.

Employer ordered the vaccination.

7.

At high risk of influenza symptoms becoming serious if infected.

8.

Family, friends, and acquaintances recommended it.

9.

Family doctor recommended it.

II.

Of those who had not received an influenza vaccination, we asked the reasons for not being vaccinated (multiple choices were allowed).

1.

No time to visit a medical institution.

2.

Believed oneself unlikely to be infected with influenza.

3.

Could not afford vaccination.

4.

Lack of confidence that influenza vaccinations are effective.

5.

Believed that disease would not likely become severe even if infected with influenza.

6.

Concerned about adverse reactions that might occur with vaccinations.

7.

Dislike of injections.

8.

Lack of knowledge about where to be vaccinated.

9.

Prior experience of an adverse reaction after being vaccinated for influenza or another disease.