Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial

IF 3.6 2区医学 Q1 HEALTH CARE SCIENCES & SERVICES

Internet Interventions-The Application of Information Technology in Mental and Behavioural Health Pub Date : 2023-12-01 DOI:10.1016/j.invent.2023.100694

Ferdinand Beleites , Maya Adam , Caterina Favaretti , Violetta Hachaturyan , Tilman Kühn , Till Bärnighausen , Sandra Barteit

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引用次数: 0

Abstract

Addressing the global challenge of vaccine hesitancy, amplified during the COVID-19 pandemic due to misinformation propagated via social media, necessitates innovative health communication strategies. This investigation scrutinizes the efficacy of Short, Animated, Story-based (SAS) videos in fostering knowledge, behavioral intent, and engagement around COVID-19 vaccination.

We conducted an online three-arm parallel randomized controlled trial (RCT) involving 792 adult participants (≥18 years, English-speaking) from the United States. The intervention group viewed a SAS video on COVID-19 vaccination, the attention placebo control group watched a SAS video on hope, and the control group received no intervention. Our primary objectives were to assess the influence of SAS videos on knowledge, behavioral intent, and engagement regarding COVID-19 vaccination.

Participants in the intervention group displayed significantly higher mean knowledge scores (20.6, 95 % CI: 20.3–20.9) compared to both the attention placebo control (18.8, 95 % CI: 18.5–19.1, P < .001) and control groups (18.7, 95 % CI: 18.4–19.0, P < .001). However, SAS videos did not notably affect behavioral intent. Perception of COVID-19 as a significant health threat emerged as a strong predictor for engaging with the post-trial video without further incentives (OR: 0.44; 95 % CI: 0.2–0.96). The 35–44 age group exhibited the highest post-trial engagement (P = .006), whereas right-wing political inclination negatively associated with engagement (OR: 1.98; 95 % CI: 3.9–1.01). Vaccination status correlated significantly with self-efficacy (P < .001), perceived social norms (P < .001), and perceived response efficacy of the COVID-19 vaccine (P < .001), all heightened in the intervention group.

These findings suggest that while SAS videos effectively amplify COVID-19 vaccination knowledge, their impact on behavioral intent is not direct. They do, however, affect determinants of vaccination status, thereby indirectly influencing vaccination behavior. The study highlights the appeal of SAS videos among younger audiences, but underscores the need for further examination of factors impeding vaccination engagement. As SAS videos closely mirror conventional social media content, they hold significant potential as a public health communication tool on these platforms.

Trial Registration: Trial was registered at drks.de with the identifier DRKS00027938, on 5 January 2022.

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评估动画短片对 COVID-19 疫苗犹豫不决的影响：在线随机对照试验

在 COVID-19 大流行期间，通过社交媒体传播的错误信息加剧了人们对疫苗的犹豫不决，要应对这一全球性挑战，就必须采取创新的健康传播策略。我们进行了一项在线三臂平行随机对照试验（RCT），有 792 名来自美国的成人参与者（≥18 岁，讲英语）参与。干预组观看了关于 COVID-19 疫苗接种的 SAS 视频，注意力安慰剂对照组观看了关于希望的 SAS 视频，对照组未接受任何干预。我们的主要目标是评估 SAS 视频对 COVID-19 疫苗接种知识、行为意向和参与度的影响。与注意力安慰剂对照组（18.8，95 % CI：18.5-19.1，P < .001）和控制组（18.7，95 % CI：18.4-19.0，P < .001）相比，干预组参与者的平均知识得分（20.6，95 % CI：20.3-20.9）明显更高。然而，SAS 视频并未对行为意向产生明显影响。认为 COVID-19 对健康构成重大威胁是在没有进一步激励措施的情况下参与试用后视频的一个强有力的预测因素（OR：0.44；95 % CI：0.2-0.96）。35-44 岁年龄组的参与度最高（P = .006），而右翼政治倾向与参与度呈负相关（OR：1.98；95 % CI：3.9-1.01）。疫苗接种状况与自我效能（P <.001）、社会规范感知（P <.001）和 COVID-19 疫苗的反应效能感知（P <.001）显著相关，所有这些在干预组中都有所提高。然而，它们确实影响了疫苗接种状况的决定因素，从而间接影响了疫苗接种行为。这项研究强调了 SAS 视频对年轻受众的吸引力，但也强调了进一步研究阻碍疫苗接种参与因素的必要性。由于 SAS 视频与传统的社交媒体内容非常相似，因此在这些平台上作为公共卫生传播工具具有很大的潜力：试验于 2022 年 1 月 5 日在 drks.de 注册，标识符为 DRKS00027938。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Internet Interventions-The Application of Information Technology in Mental and Behavioural Health Medicine-Health Informatics

CiteScore

6.50

自引率

9.30%

发文量

审稿时长

6 weeks

期刊介绍： Official Journal of the European Society for Research on Internet Interventions (ESRII) and the International Society for Research on Internet Interventions (ISRII). The aim of Internet Interventions is to publish scientific, peer-reviewed, high-impact research on Internet interventions and related areas. Internet Interventions welcomes papers on the following subjects: • Intervention studies targeting the promotion of mental health and featuring the Internet and/or technologies using the Internet as an underlying technology, e.g. computers, smartphone devices, tablets, sensors • Implementation and dissemination of Internet interventions • Integration of Internet interventions into existing systems of care • Descriptions of development and deployment infrastructures • Internet intervention methodology and theory papers • Internet-based epidemiology • Descriptions of new Internet-based technologies and experiments with clinical applications • Economics of internet interventions (cost-effectiveness) • Health care policy and Internet interventions • The role of culture in Internet intervention • Internet psychometrics • Ethical issues pertaining to Internet interventions and measurements • Human-computer interaction and usability research with clinical implications • Systematic reviews and meta-analysis on Internet interventions