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首页> 外文期刊>JMIR public health and surveillance. >Effect of a wordless, animated, social media video intervention on COVID-19 prevention: an online randomized controlled trial of 15,163 adults in the USA, Mexico, UK, Germany, and Spain
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Effect of a wordless, animated, social media video intervention on COVID-19 prevention: an online randomized controlled trial of 15,163 adults in the USA, Mexico, UK, Germany, and Spain

机译：无言，动画，社交媒体视频干预对Covid-19预防的影响：美国，美国，墨西哥，英国，德国和西班牙的15,163名成人的在线随机对照试验

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BACKGROUND:Innovative approaches to the dissemination of evidence-based COVID-19 health messages are urgently needed to counter social media misinformation about the pandemic. To this end, we designed a short, wordless, animated, global health communication video (CoVideo) that was rapidly distributed through social media channels to an international audience.OBJECTIVE:The objectives of this study were to: 1) establish the CoVideo's effectiveness in improving COVID-19 prevention knowledge, and 2) establish the CoVideo's effectiveness in increasing behavioral intent toward COVID-19 prevention.METHODS:In May and June 2020, we enrolled 15,163 online participants from the United States of America, Mexico, United Kingdom, Germany, and Spain. We randomized participants to (i) the CoVideo arm, (ii) an attention placebo control (APC) arm, and (iii) a do-nothing arm, and presented 18 knowledge questions about preventive COVID-19 behaviors, which was our first primary endpoint. To measure behavioral intent, our second primary endpoint, we randomized participants in each arm to five list experiments.RESULTS:Globally, the video intervention was viewed 1.2 million times within the first 10 days of its release and more than 15 million times within the first four months. Knowledge in the CoVideo arm was significantly higher (mean = 16.95; 95% CI: 16.91, 16.99) than in the do-nothing (mean = 16.86; 95% CI: 16.83, 16.90; p 0.001) arm. We observed high baseline levels of behavioral intent to perform many of the preventive behaviors featured in the video intervention. We were only able to detect a statistically significant impact of the CoVideo on one of the five preventive behaviors.CONCLUSIONS:Despite high baseline levels, the intervention was effective at boosting knowledge of COVID-19 prevention. We were only able to capture a measurable change in behavioral intent towards one of the five COVID-19 preventive behaviors examined in this study. The global reach of this health communication intervention and the high voluntary engagement of trial participants highlight several innovative features that could inform the design and dissemination of public health messages. Short, wordless, animated videos, distributed by health authorities via social media, may be an effective pathway for rapid global health communication during health crises.CLINICALTRIAL:The study and its outcomes were registered at the German Clinical Trials Register (www.drks.de) on May 12th, 2020: #DRKS00021582.
机译：背景：迫切需要创新循证Covid-19卫生信息的创新方法，以抵御关于大流行的社交媒体错误信息。为此，我们设计了一个简短，无言，动画，全球健康通信视频（Covideo），通过社交媒体渠道迅速分发给国际观众。目的：本研究的目标是：1）建立Covideo的有效性改善Covid-19预防知识和2）建立Covideo在增加Covid-19预防的行为意图方面的有效性。和西班牙。我们将参与者随机化到（i）Covideo ARM，（ii）注意力安慰剂控制（APC）ARM，（iii）一无所有的手臂，并呈现了关于预防性Covid-19行为的18个知识问题，这是我们的第一个主要端点。为了衡量行为意图，我们的第二个主要端点，我们将每只臂的参与者随机化到五个列表实验。结果：在全球范围内，视频干预在其释放的前10天内被视为120万次，而第一个超过1500万次。四个月。 Covideo ARM中的知识显着更高（平均值= 16.95; 95％CI：16.91,16.99）比在DO-NORE中（平均值= 16.86; 95％CI：16.83,16.90; P <0.001）臂。我们观察到在视频干预中执行许多预防性的行为意图的高基线水平。我们只能在五种预防性行为中检测Covideo对Covideo的统计显着影响。结论：尽管基线水平高，但干预措施旨在提高Covid-19预防知识。我们只能捕捉到本研究中审查的五个Covid-19预防行为之一的行为意图的可衡量变化。这种健康沟通干预的全球范围和审判参与者的高自愿参与突出了几种创新功能，可以为公共卫生信息的设计和传播提供信息。通过社交媒体的卫生当局分发的简短，无言辞动画视频，可能是健康危机快速全球健康沟通的有效途径.ClinicalTial：研究及其结果在德国临床试验登记册（www.drks.de ）5月12日，2020年5月：＃drks00021582。

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