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

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 fosteri...

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Main Authors: Ferdinand Beleites, Maya Adam, Caterina Favaretti, Violetta Hachaturyan, Tilman Kühn, Till Bärnighausen, Sandra Barteit
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:Internet Interventions
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214782923000945
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author Ferdinand Beleites
Maya Adam
Caterina Favaretti
Violetta Hachaturyan
Tilman Kühn
Till Bärnighausen
Sandra Barteit
author_facet Ferdinand Beleites
Maya Adam
Caterina Favaretti
Violetta Hachaturyan
Tilman Kühn
Till Bärnighausen
Sandra Barteit
author_sort Ferdinand Beleites
collection DOAJ
description 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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spelling doaj.art-dde24c0d89fc4062affed5bc424ce3632024-03-05T04:29:46ZengElsevierInternet Interventions2214-78292024-03-0135100694Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trialFerdinand Beleites0Maya Adam1Caterina Favaretti2Violetta Hachaturyan3Tilman Kühn4Till Bärnighausen5Sandra Barteit6Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany; Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United StatesHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany; Behavioral Science for Disease Prevention and Health Care, Technical University of Munich, Munich, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany; University of Vienna, Department of Nutritional Sciences, Vienna, Austria; Medical University of Vienna, Center for Public Health, Vienna, AustriaHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany; Africa Health Research Institute (AHRI), Somkhele, KwaZulu-Natal, South Africa; Harvard Center for Population and Development Studies, T.H. Chan School of Public Health, Cambridge, MA, United StatesHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany; Corresponding author at: Im Neuenheimer Feld 130.3, 69120 Heidelberg, Germany.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.http://www.sciencedirect.com/science/article/pii/S2214782923000945Short animated videosCOVID-19Vaccine hesitancyRandomized controlled trialGlobal HealthBehavior
spellingShingle Ferdinand Beleites
Maya Adam
Caterina Favaretti
Violetta Hachaturyan
Tilman Kühn
Till Bärnighausen
Sandra Barteit
Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial
Internet Interventions
Short animated videos
COVID-19
Vaccine hesitancy
Randomized controlled trial
Global Health
Behavior
title Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial
title_full Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial
title_fullStr Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial
title_full_unstemmed Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial
title_short Evaluating the impact of short animated videos on COVID-19 vaccine hesitancy: An online randomized controlled trial
title_sort evaluating the impact of short animated videos on covid 19 vaccine hesitancy an online randomized controlled trial
topic Short animated videos
COVID-19
Vaccine hesitancy
Randomized controlled trial
Global Health
Behavior
url http://www.sciencedirect.com/science/article/pii/S2214782923000945
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