The influence of information sources on intention changes to receive COVID-19 vaccination: A prospective cohort study in Japan

• DOI: 10.1265/ehpm.22-00266
• Publication Date: 2023-02-01T22:11:46Z
• Authors: Daisuke Hori; Tsukasa Takahashi; Yudai Kaneda; Akihiko Ozaki; Takahiro Tabuchi
• Keywords: Herd Immunity; Odds

Before the COVID-19 vaccine became available, many Japanese people were undecided about whether or not to receive them. Their decisions keys achieving herd immunity. The impact of type information source on uptake decision-making process remains unclear. We aimed investigate association between usage and subsequent status among those who have yet decide vaccines from non-prioritized for vaccination.Prospective cohort online self-administered surveys conducted in February 2021 (T1), before start mass vaccination program, September-October (T2), when available all citizens. survey's target population was registered monitors an Internet research company. Participants answered "I want get vaccinated after waiting see how it goes." at T1 eligible analysis. outcome variable T2, predictors 20 types sources, categorized based (family members, etc.), institutions (governments, media (TV news, etc.). Adjusted odds ratio 95% confidence intervals estimated using logistic regression adjusted possible confounders.The 5,139 respondents, mean age standard deviation 42.8 ± 12.5, 55.7% female, 85.7% completed (including reserved/intended people) T2. In multivariate analysis, ratios (95% interval) 1.49 (1.18-1.89) workplaces/schools, 1.81 (1.33-2.47) LINE, 0.69 (0.55-0.86) news 0.62 (0.48-0.82) video sharing sites.The played important role decision vaccinate against COVID-19. Although caution is needed interpreting results, obtaining workplaces/schools LINE influential promoting immunization.