Ingebretsen Carlson Jim, Puppo Federico, Roca-Umbert Ana, Folkvord Frans, Lupiáñez-Villanueva Francisco
PredictBy Research and Consulting, Barcelona, Spain.
Tilburg School of Humanities and Digital Sciences, Tilburg University, Tilburg, The Netherlands.
Sci Rep. 2025 Apr 1;15(1):11197. doi: 10.1038/s41598-025-96092-6.
Although immunization through vaccination is one of the most successful public health interventions, coverage of some vaccination programs has decreased in recent years due to increased vaccine hesitancy. Cognitive biases have been shown to play an important role in affecting vaccine hesitancy. In this study, we conducted a randomized controlled trial (N = 2000, N = 1000 from Spain and N = 1000 from Bulgaria), where subjects were randomly assigned to one experimental condition. The experimental conditions differed by whether electronic product information (ePI) was presented to the subjects and by the type of information that was made more salient to the patient. The current study showed that the provision of digital information in the form of ePI has important consequences for achieving high vaccination rates. The main result suggests that providing vaccination information in the form of ePI can increase patients' vaccine hesitancy. This effect remained when positive and/or negative information in the ePI was made more salient to the patients. Additionally, we observe that vaccine hesitant individuals spend less time reading ePI. We conclude, by relating the current study to the relevant literature, that salience and information overload could be the main driver of vaccine hesitancy in the context of this study.
尽管通过疫苗接种进行免疫是最成功的公共卫生干预措施之一，但近年来，由于疫苗犹豫现象增多，一些疫苗接种计划的覆盖率有所下降。认知偏差已被证明在影响疫苗犹豫方面起着重要作用。在本研究中，我们进行了一项随机对照试验（N = 2000，其中1000名来自西班牙，1000名来自保加利亚），受试者被随机分配到一种实验条件下。实验条件因是否向受试者呈现电子产品信息（ePI）以及向患者突出呈现的信息类型而异。当前研究表明，以ePI形式提供数字信息对于实现高疫苗接种率具有重要影响。主要结果表明，以ePI形式提供疫苗接种信息会增加患者的疫苗犹豫程度。当ePI中的正面和/或负面信息更突出地呈现给患者时，这种效果仍然存在。此外，我们观察到对疫苗犹豫的个体阅读ePI的时间较少。通过将当前研究与相关文献联系起来，我们得出结论，在本研究背景下，突出性和信息过载可能是疫苗犹豫的主要驱动因素。
