Traditional and Social Media Usage Associated With COVID-19 Vaccine Uptake in Sapporo, Japan

This study aimed to determine the relationship between specific information source usage and uptake of the coronavirus disease 2019 (COVID-19) vaccine. We analyzed 3348 participants aged 20 to 65 years who were not diagnosed with COVID-19 in a case-control study in Sapporo, Japan. The most prevalent information source on COVID-19 was television (TV; 87.8%), followed by online news sites (74.3%), newspapers (38.7%), websites of public institutions (30.9%), and families (29.7%). Multivariate logistic regression showed that the adjusted odds ratios of incompletion of second vaccinations for users of TV and newspaper to gather COVID-19 information were 0.31 and 0.32, respectively, whereas those for users of books, commercial video sites, Facebook, and “personal blog or bulletin board system” were 3.34, 2.22, 2.36, and 4.81, respectively. Social media use among older or male participants was associated with lower vaccine uptake.