Table 3 Correspondence table between health belief model factors and questionnaire items.

From: Factors affecting motivation for receiving a booster dose of the COVID-19 vaccine among Japanese university students and staff: a cross-sectional questionnaire survey

Factors

Questionnaire items†

Perceived susceptibility

Fear of COVID-19 infection itself

Perceived severity

Fear of severe COVID-19 illness

Perceived benefits

Do you believe in the efficacy of vaccines in general?

Did you expect the vaccine to work?

Perceived barriers

–

Cues to action

Newspapers

Everyone would get vaccinated

Self-efficacy

Did you hesitate to get vaccinated?

Do you think you were right to vaccinate?

Not present items in the health belief model

Affiliation

Smoking History

Were the people around you in favor of vaccination?

Do you believe in the safety of vaccines in general?

  1. †Risk ratio and odds ratio in multivariate analysis with 95% confidence intervals that do not cross 1.000.
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