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Completed

NCT Number: NCT03648138

Testing the Influence of Different Sugary Drink Warning Label Designs

The aim of this study is to compare different sugary drink labels to see which most influence knowledge, beliefs, purchase intentions and choices. Parents of children ages 6-11 will shop in a virtual convenience store after being randomized to 1 of 4 conditions: 1) calorie labels; 2) text warning labels; 3) graphic sugar warning labels; or 4) graphic health warning. This study will provide data comparing the influence of sugary drink text warning labels and two kinds of graphic warning labels.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Online study with GfK

Philadelphia, Pennsylvania, 19104, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • a primary caregiver of a child 6-to-11 years old;
  • ≥18 years old; and
  • can read and speak English

Exclusion criteria

  • not a primary caregiver of a child 6-to-11 years old;
  • <18 years old; and
  • cannot read and/or speak English

Treatment and study plan

Sugary drink warning labels

Behavioral

This information appears in the description of the study arms.

Primary outcomes

  1. Hypothetical beverage choice

    Time frame: The survey will take up to 20 minutes

    Participants will select a beverage to purchase in the virtual store. Our outcome will be the percentage of parents choosing a 20-ounce sugary drink for their child

Secondary outcomes

  1. Likely to serve or buy these beverages:

    Time frame: The survey will take up to 20 minutes

    Item: "How likely are you to serve or buy this product for your child in the next 4 weeks?" This will be answered on a 7-point Likert scale.

  2. Parent feels good serving the beverages

    Time frame: The survey will take up to 20 minutes

    Item: "Serving this product to my child would make me feel like I am doing something good for my child." This will be measured on a 7-point likert scale.

  3. Child enjoyment of beverages

    Time frame: The survey will take up to 20 minutes

    Item: "How much do you think your child would enjoy this product?" This will be answered on a 7-point likert scale.

  4. Health beliefs and risk perceptions index

    Time frame: The survey will take up to 20 minutes

    We will create this outcome by summing responses to the following 7 health perception questions 6 prompted with the statement "Drinking this product often would…". The statements end with the following health belief and risk perception language: "lead my child to gain weight," "increase my child's risk of heart disease," "increase my child's risk of diabetes," "make my child feel energized," "help my child focus at school", and "help my child live a healthy life." The other item is: "How healthy do you think this product is for your child?" Responses to questions about weight gain, heart disease, and diabetes will be reverse coded, so higher scores on the index will indicate a stronger positive health perception of the beverages. These will be scored on 7-point likert scales.

  5. Estimate of how many teaspoons of added sugar are in the beverages

    Time frame: The survey will take up to 20 minutes

    This variable will be measured continuously based on a text box provided to participants.

  6. Perceived amount of added sugar in beverages

    Time frame: The survey will take up to 20 minutes

    This variable will be measured on a 3-point Likert scale ranging from "too little for my child" to "too much for my child".

  7. Noticing the label

    Time frame: The survey will take up to 20 minutes

    Participants will respond "yes," "no," or "I don't know" to the item: "When you selected a beverage to buy for your child at the beginning of this survey, did you notice any labels on the beverages other than calorie information?"

  8. Perceived label influence

    Time frame: The survey will take up to 20 minutes

    Participants will respond: "yes", "no," or "I did not notice any labels" in response to the question of whether the label influenced their purchase.

  9. Favor or oppose sugary drink warning label policy

    Time frame: The survey will take up to 20 minutes

    We will compare the percentage of participants in favor of (combining somewhat favor and strongly favor), opposed to (combining somewhat oppose and strongly oppose), or neutral about the policy based on the following question: "Would you favor or oppose a government policy requiring a warning label to be placed on beverages with added sugars?" Ratings will be from -2 to 2.

  10. Likelihood of label changing thoughts

    Time frame: The survey will take up to 20 minutes

    Item: "If this government warning label were on a beverage, how much would it change your thoughts about the healthiness of that beverage for your child?" This will be measured on a 5-point Likert scale.

  11. Encourage you to give fewer beverages to your child

    Time frame: The survey will take up to 20 minutes

    Item: "If you saw this government warning label on a beverage, would the label encourage you to serve your child that beverage less often?" The responses will be measured on a 5-point Likert scale.

  12. How much do you trust the information on this label

    Time frame: The survey will take up to 20 minutes

    Item: "How much do you trust the information on this label?". Responses will be measured on a 7-point Likert scale.

  13. Negative reactions to the label

    Time frame: The survey will take up to 20 minutes

    We will examine the average negative emotional response to the label (said the warning label made them feel worried, fearful, guilty, or disgusted or grossed out). Each emotion will be scored on a 5-pt likert scale.

Sponsors and collaborators

Lead sponsor

University of Pennsylvania

Other

Collaborators

  • Drexel University
  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
  • New York University
  • University of Connecticut

Registry information

Important dates

Study start
2020
Primary completion
2020
Study completion
2020
First posted
Aug 27, 2018
Registry last updated
Mar 11, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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