Exploring the Effect of Video Interventions on Intentions for Continued COVID-19 Vaccination
Promoting Protection of Others to Increase Future COVID-19 Booster Shot Vaccination Intentions in Younger Adult Canadians: Evaluating the Efficacy of Short Video-based Interventions
1 other identifier
interventional
3,567
1 country
1
Brief Summary
While COVID-19 vaccine uptake has generally been high in Canada, with 83.4% of the total population having received the first two doses (i.e., primary series), additional "booster" uptake has been slower, especially among young adults aged 18-39. Throughout the pandemic, young adults have experienced less personal risk from COVID-19 infection and this has led to lower motivation to vaccinate when it is recommended. Achieving high rates of up-to-date vaccine coverage is important in this group to anticipate new variants and waves of infection and changes to recommendations which might include annual or seasonal vaccination. Three video interventions, intended to motivate Canadian young adults to adopt positive intentions toward continued COVID-19 vaccination, will be developed and tested: an informational comparison video, an altruistic video, and an individualistic video. Participants will be 3300 Canadian younger adults who will be randomly assigned to watch these videos. The first arm will only receive the informational video, the second arm the informational and altruistic videos, and the third arm the informational, altruistic, and individualistic videos. All participants will complete a brief online survey before and after viewing the assigned video(s). The goal of the study is to examine the efficacy of altruistic and individualistic messages, beyond informational messages, in increasing intentions for COVID-19 vaccination in this age group.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jun 2023
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 7, 2023
CompletedFirst Posted
Study publicly available on registry
April 11, 2023
CompletedStudy Start
First participant enrolled
June 6, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2023
CompletedNovember 27, 2023
November 1, 2023
2 months
April 7, 2023
November 23, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Vaccine Intentions
Intentions to receive COVID-19 vaccines as they are continually recommended will be measured using the Precaution Adoption Process Model (PAPM). The PAPM is a stage-based model of health decision-making, and will be adapted to contain the categories: unengaged, undecided, decided to, and decided not to receive recommended COVID-19 vaccines. Participants will provide their stage before and after the intervention has been administered, all within the same survey.
Pre- and post-intervention, within the same survey. The length of the survey is projected to be about 12 minutes.
Study Arms (3)
Informational Video
ACTIVE COMPARATORParticipants will watch a 1-minute video detailing the impact vaccination has had on the COVID-19 pandemic, where accurate information on vaccination can be found, and the convenience of vaccination.
Informational + Altruistic Video
EXPERIMENTALParticipants will first watch the 1-minute informational video before watching an additional 40-second video eliciting altruistic motivations for vaccination. The purpose of this arm is to test whether altruistic messages are efficacious to increase vaccine intentions beyond providing only vaccine information.
Informational + Altruistic + Individualistic Video
EXPERIMENTALParticipants will watch the 1-minute informational video, the 40-second altruistic video, and an additional 40-second video eliciting individualistic motivations for vaccination. This arm will be used to test if combined altruistic and individualistic messages provide a greater effect than providing only vaccine information.
Interventions
This video emphasizes that vaccination against COVID-19 continues to be important, highlights the importance of seeking accurate information, and provides statistics about the estimated number of lives saved by vaccination and reported adverse events following vaccination in Canada.
This video presents a vignette about a young adult woman who has many social interactions during her daily life. It shows that her decision to stay up-to-date on COVID-19 vaccination could help to protect those people she comes into contact with, who may be at greater risk from COVID-19 infection. Statistics are used to show that up to one-in-four people in Canada have underlying conditions that make them more vulnerable to COVID-19, and to quantify the number of surgeries that were delayed by pandemic-related disruptions.
This video presents a vignette about a young adult man who is very health-conscious. He is unsure about staying up-to-date on COVID-19 vaccination until he learns that COVID-19 infection can have serious and disruptive consequences even if someone is younger. Statistics are used to quantify the increased risk of severe symptoms in young adults who are not up-to-date on vaccination.
Eligibility Criteria
You may qualify if:
- Residing within Canada
- Aged between 18 and 39.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Lady Davis Insitutute for Medical Research
Montreal, Quebec, H3T 1E2, Canada
Related Publications (5)
Zhu P, Tatar O, Griffin-Mathieu G, Perez S, Haward B, Zimet G, Tunis M, Dube E, Rosberger Z. The Efficacy of a Brief, Altruism-Eliciting Video Intervention in Enhancing COVID-19 Vaccination Intentions Among a Population-Based Sample of Younger Adults: Randomized Controlled Trial. JMIR Public Health Surveill. 2022 May 30;8(5):e37328. doi: 10.2196/37328.
PMID: 35544437BACKGROUNDZhu P, Tatar O, Haward B, Steck V, Griffin-Mathieu G, Perez S, Dube E, Zimet G, Rosberger Z. Examining an Altruism-Eliciting Video Intervention to Increase COVID-19 Vaccine Intentions in Younger Adults: A Qualitative Assessment Using the Realistic Evaluation Framework. Vaccines (Basel). 2023 Mar 11;11(3):628. doi: 10.3390/vaccines11030628.
PMID: 36992212BACKGROUNDBrewer NT, Chapman GB, Rothman AJ, Leask J, Kempe A. Increasing Vaccination: Putting Psychological Science Into Action. Psychol Sci Public Interest. 2017 Dec;18(3):149-207. doi: 10.1177/1529100618760521.
PMID: 29611455BACKGROUNDYuan S, Chu H. Vaccine for yourself, your community, or your country? Examining audiences' response to distance framing of COVID-19 vaccine messages. Patient Educ Couns. 2022 Feb;105(2):284-289. doi: 10.1016/j.pec.2021.08.019. Epub 2021 Aug 25.
PMID: 34479746BACKGROUNDReifferscheid L, Lee JSW, MacDonald NE, Sadarangani M, Assi A, Lemaire-Paquette S, MacDonald SE. Transition to endemic: acceptance of additional COVID-19 vaccine doses among Canadian adults in a national cross-sectional survey. BMC Public Health. 2022 Sep 14;22(1):1745. doi: 10.1186/s12889-022-14025-8.
PMID: 36104675BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Zeev Rosberger, PhD
Lady Davis Institute for Medical Research of the Jewish General Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Masking Details
- The survey company, Dynata, will collect all data and manage group assignments. Participants' intervention group assignments will be unavailable to the investigator.
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Senior Investigator
Study Record Dates
First Submitted
April 7, 2023
First Posted
April 11, 2023
Study Start
June 6, 2023
Primary Completion
August 1, 2023
Study Completion
August 1, 2023
Last Updated
November 27, 2023
Record last verified: 2023-11
Data Sharing
- IPD Sharing
- Will not share
The consent form, data collection method, and organizational policy means only aggregated data will be shared with other researchers.