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Health Communication to Influence COVID-19 Vaccination Intent and Message Propagation (CONVINCE)

16. februar 2022 opdateret af: Nicholas Hing Yee Liang, Clinical Research Centre, Malaysia

Effective Public Health Communication to Influence COVID-19 Vaccination Intent and Message Propagation: A Randomized Controlled Experiment

This is a randomised controlled experiment in the form of a web based survey study which randomly exposes participants to different forms of public health messages, after which participants will be assessed on their intent to take up the COVID-19 vaccine, recommend the vaccine, and also willingness to propagate the exposed message.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

5784

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Malaysia
    • Selangor
      • Shah Alam, Selangor, Malaysia, 40170
        • Institute for Clinical Research, National Institutes of Health, Malaysia

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Willing and able to give informed consent for participation in the trial
  • Malaysian nationality.
  • Can understand either the English or Malay language.
  • Aged 18 years or above

Exclusion Criteria:

  • Received at least one COVID-19 vaccination dose

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Descriptive Norm (70%)

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content describing that about 70% of Malaysians have expressed acceptance for the COVID-19 vaccine.
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Descriptive Norm

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content describing that the COVID-19 vaccine has been widely tested including with the elderly and people with existing health conditions, while subsequently highlighting that the vaccine was already received by millions worldwide.
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Healthcare worker (HCW) recommendation

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content highlights recommendation from Malaysian healthcare workers to get the vaccine, since majority of them has already received it, including the Malaysian Health Director General
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Negative attribute framing

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content describing the rate of side effects occurring with COVID-19 vaccination in a negative frame.
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Positive attribute framing

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content describing the rate of side effects occurring with COVID-19 vaccination in a positive frame.
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Risky choice framing (Safety)

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content describing a risky choice frame which compares the death rates occurring with COVID-19 vaccination versus contracting the virus itself.
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Risky choice framing (Side effects)

Intervention in the form of a message likened to a social media post. Composed of 3 parts:

  1. Opening tag line highlighting the main concern that Malaysians have about the COVID-19 vaccine (safety and side effects)
  2. Message content describing a risky choice frame that compares the incidence rates of blood clots occurring with COVID-19 vaccination versus contracting COVID-19.
  3. Rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Control message
Control message containing only rally slogan: "It's safe and effective!"
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Combination message: Descriptive Norm (70%) + Descriptive Norm
Participants received 2 messages which were exposed one at a time. Sequence of message appearing randomly rotated.
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Combination message: Descriptive Norm (70%) + HCW recommendation
Participants received 2 messages which were exposed one at a time. Sequence of message appearing randomly rotated.
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Combination message: Descriptive Norm (70%) + Negative attribute framing
Participants received 2 messages which were exposed one at a time. Sequence of message appearing randomly rotated.
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Combination message: Descriptive Norm (70%) + Positive attribute framing
Participants received 2 messages which were exposed one at a time. Sequence of message appearing randomly rotated.
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Combination message: Descriptive Norm (70%) + Risky choice framing (Safety)
Participants received 2 messages which were exposed one at a time. Sequence of message appearing randomly rotated.
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.
Eksperimentel: Combination message: Descriptive Norm (70%) + Risky choice framing (Side effects)
Participants received 2 messages which were exposed one at a time. Sequence of message appearing randomly rotated.
Adfærdsmæssigt: Health message exposure
Participants exposed to a health message and requested to read it completely. Subsequently requested to answer post intervention questions that form basis for outcome measures.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in intent to accept the COVID-19 vaccine amongst the Malaysian adult population.
Tidsramme: Immediately before and after message exposure during questionnaire administration.
Outcome measure was assessed using a questionnaire answered through a 4 point ordinal scale. Scale ranges from '"Definitely no", "Not sure, but probably no", "Not sure, but probably yes"to Definitely yes".
Immediately before and after message exposure during questionnaire administration.
Change in intent to recommend the COVID-19 vaccine to healthy adults.
Tidsramme: Immediately before and after message exposure during questionnaire administration.
Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".
Immediately before and after message exposure during questionnaire administration.
Change in intent to recommend the COVID-19 vaccine to elderly.
Tidsramme: Immediately before and after message exposure during questionnaire administration.
Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".
Immediately before and after message exposure during questionnaire administration.
Change in intent to recommend the COVID-19 vaccine to people with existing health conditions.
Tidsramme: Immediately before and after message exposure during questionnaire administration.
Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".
Immediately before and after message exposure during questionnaire administration.
Intent to share message on social media platform.
Tidsramme: Immediately after message exposure during questionnaire administration.
Outcome measure was assessed using a questionnaire answered through a 5 point ordinal scale.Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".
Immediately after message exposure during questionnaire administration.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Moderators of vaccination intent.
Tidsramme: Immediately after message exposure during questionnaire administration.
Outcome measure assessed using a series of questions answered through a 5 point ordinal scale. Scale ranges from "Strongly disagree", "Disagree", "Not sure", "Agree", and "Strongly agree".
Immediately after message exposure during questionnaire administration.
Reliability of various information sources about COVID-19.
Tidsramme: Immediately after message exposure during questionnaire administration.
Outcome measure assessed using a questionnaire that list out various types of information sources and having participants to rate the reliability for each source using a 5 point ordinal scale. Scale ranges from "Strongly not reliable", "Not reliable, "Not sure", "Reliable", and "Strongly reliable".
Immediately after message exposure during questionnaire administration.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Clinical Research Centre, Malaysia

Samarbejdspartnere

University of Malaya
London School of Economics and Political Science
Ministry of Health, Malaysia
UNICEF Malaysia
Institute for Health Behavioral Research, Malaysia

Efterforskere

  • Ledende efterforsker: Yee Liang Hing, MSc., Clinical Research Centre, Malaysia

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

29. april 2021

Primær færdiggørelse (Faktiske)

7. juni 2021

Studieafslutning (Faktiske)

7. juni 2021

Datoer for studieregistrering

Først indsendt

10. februar 2022

Først indsendt, der opfyldte QC-kriterier

16. februar 2022

Først opslået (Faktiske)

17. februar 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

17. februar 2022

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

16. februar 2022

Sidst verificeret

1. februar 2022

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • NMRR-21-26-58107

Plan for individuelle deltagerdata (IPD)

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