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Designing Impactful Warnings for Sugary Drinks

22. januar 2021 opdateret af: University of North Carolina, Chapel Hill

The goal of this online RCT study is to examine how sugar-sweetened beverage (SSB) health warnings influence US adults' perceptions and reactions. The investigators have the following predictions:

  1. SSB warnings will be perceived as more effective than the control (message topic)
  2. Icon and graphic warnings will be perceived as more effective than text-only warnings (message type)

The investigators will also examine the interaction of warning topic and warning type, but have no specific hypothesis about this interaction.

Finally, the investigators will test the following predictions about the secondary outcomes:

SSB warnings (vs. control), as well as icon and graphic warnings (vs text.warnings), will lead to lower perceived product healthfulness, lower purchase intentions, and higher cognitive elaboration.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Childhood obesity is a major public health problem in the US among racial and ethnic minorities, including among the US's growing Latino population. One promising but understudied policy for addressing childhood obesity is requiring warnings on the front of sugar-sweetened beverage containers. However, the topic and design of warnings that are most effective in communicating the harms of sugar-sweetened beverages remains unknown. This study assess which warning topics and which warning designs lead to the greatest perceived message effectiveness among US Latino and non-Latino parents of children ages 2-12. The investigators focus on parents as they are the primary decision-makers and purchasers of food products for children and exert strong influence over their children's dietary intake and food attitudes.

Setting: The trial will take place online on a survey developed using Qualtrics.

Recruitment: Participants will be recruited online by CloudResearch PrimePanels, a survey research platform with access to over 20 million participants. As such, participants will have to be PrimePanels members in order to participate.

Informed Consent: After determining eligibility, eligible participants will be directed to a page on Qualtrics with the consent form. Participants acknowledge their consent in the study by clicking the "next page" arrow and proceeding to the study.

Randomization: After consenting, the participant is randomly assigned to to view one of the 5 warning topics. "WARNING: High in added sugar" (added sugar), "WARNING: Excess consumption of drinks with added sugar contributes to weight gain" (weight gain), "WARNING: Excess consumption of drinks with added sugar contributes to type 2 diabetes" (Type 2 diabetes), "WARNING: Excess consumption of drinks with added sugar contributes to heart damage" (heart damage), and "Please refrain from littering" (control). Within each of the four experimental arms, participants see the message displayed on four different types of warning designs: a text warning on a square background, a text warning on a octagon background, and icon warning, and a graphic warning. Within the control arm, participants see the message displayed on three different types of warning designs: a text warning on a square background, an icon warning, and a graphic warning. Participants randomly see the different warning designs in a random order.

Survey: The participants complete a survey answering behavioral perceptions and intentions questions about the different warning labels.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

1078

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

  • Forenede Stater
    • North Carolina
      • Chapel Hill, North Carolina, Forenede Stater, 27599
        • University of North Carolina Chapel Hill

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 til 99 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • at least 18 years old
  • Prime Panels member
  • have at least one child ages 2-12
  • Currently reside in the US

Exclusion Criteria:

  • less than 18 years old

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

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

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Added sugar warning message
Message displayed on warning labels is: "WARNING: High in added sugar."
Adfærdsmæssigt: Text warning with square background
The warning message is in white text on a black square background
Adfærdsmæssigt: Text warning with octagon background
The warning message is in white text on a black octagon background
Adfærdsmæssigt: Icon warning
The warning message in in white text on a black background, below an icon that conveys the topic the warning is about
Adfærdsmæssigt: Graphic warning
The warning message in in white text on a black background, below a graphic that conveys the topic the warning is about
Eksperimentel: Weight gain warning message
Message displayed on warning labels is: "WARNING: Excess consumption of drinks with added sugar contributes to weight gain."
Adfærdsmæssigt: Text warning with square background
The warning message is in white text on a black square background
Adfærdsmæssigt: Text warning with octagon background
The warning message is in white text on a black octagon background
Adfærdsmæssigt: Icon warning
The warning message in in white text on a black background, below an icon that conveys the topic the warning is about
Adfærdsmæssigt: Graphic warning
The warning message in in white text on a black background, below a graphic that conveys the topic the warning is about
Eksperimentel: Type 2 diabetes warning message
Message displayed on warning labels is: "WARNING: Excess consumption of drinks with added sugar contributes to type 2 diabetes."
Adfærdsmæssigt: Text warning with square background
The warning message is in white text on a black square background
Adfærdsmæssigt: Text warning with octagon background
The warning message is in white text on a black octagon background
Adfærdsmæssigt: Icon warning
The warning message in in white text on a black background, below an icon that conveys the topic the warning is about
Adfærdsmæssigt: Graphic warning
The warning message in in white text on a black background, below a graphic that conveys the topic the warning is about
Eksperimentel: Heart damage warning message
Message displayed on warning labels is: "WARNING: Excess consumption of drinks with added sugar contributes to heart damage."
Adfærdsmæssigt: Text warning with square background
The warning message is in white text on a black square background
Adfærdsmæssigt: Text warning with octagon background
The warning message is in white text on a black octagon background
Adfærdsmæssigt: Icon warning
The warning message in in white text on a black background, below an icon that conveys the topic the warning is about
Adfærdsmæssigt: Graphic warning
The warning message in in white text on a black background, below a graphic that conveys the topic the warning is about
Aktiv komparator: Neutral message
Message displayed on control label is: "Please refrain from littering."
Adfærdsmæssigt: Text warning with square background
The warning message is in white text on a black square background
Adfærdsmæssigt: Icon warning
The warning message in in white text on a black background, below an icon that conveys the topic the warning is about
Adfærdsmæssigt: Graphic warning
The warning message in in white text on a black background, below a graphic that conveys the topic the warning is about

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Perceived message effectiveness
Tidsramme: During survey, which lasts approximately 12-15 minutes.

Perceived message effectiveness as measured by average response to three statements:

This message makes me concerned about the health effects of drinking beverages with added sugar. Response options are on a scale (1=Strongly disagree...5=Strongly agree).

This message makes drinking beverages with added sugar seem unpleasant to me. Response options are on a scale (1=Strongly disagree...5=Strongly agree).

This message discourages me from wanting to drink beverages with added sugar. Response options are on a scale (1=Strongly disagree...5=Strongly agree).
During survey, which lasts approximately 12-15 minutes.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Perceived product healthfulness of beverages with added sugar
Tidsramme: During survey, which lasts approximately 12-15 minutes.
Measured with the question, "How healthy or unhealthy would it be for your child to drink beverages with added sugar every day?" Response options are on a scale (1= Very unhealthy...5=Very healthy).
During survey, which lasts approximately 12-15 minutes.
Intentions to purchase beverages with added sugar
Tidsramme: During survey, which lasts approximately 12-15 minutes.
Measured with the question, "How likely are you to buy beverages with added sugar for your child in the next four weeks?" Response options are on a scale (1 = Not at all likely...5 = Extremely likely).
During survey, which lasts approximately 12-15 minutes.
Thinking about the health problems from beverages with added sugar
Tidsramme: During survey, which lasts approximately 12-15 minutes.
Measured with the question, "How much does this message make you think about the health problems caused by drinking beverages with added sugar?" Response options are on a scale (1=Not at all...5=Very much).
During survey, which lasts approximately 12-15 minutes.

Samarbejdspartnere og efterforskere

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

Sponsor

University of North Carolina, Chapel Hill

Samarbejdspartnere

Robert Wood Johnson Foundation

Efterforskere

  • Ledende efterforsker: Marissa G Hall, PhD, University of North Carolina

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)

7. oktober 2019

Primær færdiggørelse (Faktiske)

4. november 2019

Studieafslutning (Faktiske)

4. november 2019

Datoer for studieregistrering

Først indsendt

6. maj 2020

Først indsendt, der opfyldte QC-kriterier

6. maj 2020

Først opslået (Faktiske)

11. maj 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. januar 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. januar 2021

Sidst verificeret

1. januar 2021

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 19-0277a

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

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