Effects of Sugary Drink Warning Labels on Parent Choices

September 13, 2021 updated by: Christina Roberto, PHD, University of Pennsylvania

Effects of Sugary Drink Warning Labels on Parent Choices for 6-11 Year Olds

Sugar-sweetened beverages (SSBs) are a significant contributor to adult and childhood obesity. Policies to place health warning labels on sugar-sweetened beverages are being pursued, but there is little empirical data on how such labels influence people. The proposed research will evaluate the impact of different types of sugar-sweetened beverage warning labels relative to standard calorie labels on the purchasing and consumption behaviors of parents and children.

Study Overview

Detailed Description

The primary objective of this proposal is to determine, before wide-scale implementation, to what degree SSB warning labels increase consumers' knowledge about the potential health harms of SSBs and reduce SSB intake. The study is designed to answer two additional questions: 1) Do some warning labels work better than others? 3) If warning labels influence behavior, is it because they increase knowledge or simply provide a salient reminder that some drinks are less healthy? This aim is designed to test the effect of warning labels on total kilocalories (kcals) purchased and consumed by parents and children. We will examine how SSB warning labels influence snack and beverage purchases and intake among 405 racially and ethnically diverse parent-child pairs.

Study Type

Interventional

Enrollment (Actual)

1

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • University of Pennsylvania

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

6 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Participant pairs must be:
  • Primary caregiver of a child 6-11 years old; 18 years or older; can read and speak English; did not participate in related studies from our group
  • Child is between 6 and 11 years old; drinks SSBs at least 12 times per month (~3 times per week)

Exclusion Criteria:

  • Unable to participate in person in Philadelphia
  • Parent did not purchase food and beverage for their child
  • Parent or caregiver refused to give child permission to participate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Calorie/Control Label Condition
Beverages at the concession stand and in the parent survey in this arm will display solely a calorie label.
Calories for sugar-sweetened and non-sugar-sweetened beverages
Experimental: Text Warning Label Condition
Sugary beverages at the concession stand and in the parent survey in this arm will display both a text warning and a calorie label.
Graphic images of the amount of sugar (randomly assigned teaspoons, packets, or cubes) and text warning labels
Calories for sugar-sweetened and non-sugar-sweetened beverages
Experimental: Sugar Graphic Label Condition
Sugary beverages at the concession stand and in the parent survey in this arm will display a sugar graphic warning label depicting the amount of sugar in the product, the same text warning, and a calorie label.
Graphic images of the amount of sugar (randomly assigned teaspoons, packets, or cubes) and text warning labels
Calories for sugar-sweetened and non-sugar-sweetened beverages

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total beverage calories purchased for the child
Time Frame: Study visit, one hour
Total number of calories for all beverages purchased for the child during the study visit
Study visit, one hour
Total calories purchased for the child
Time Frame: Study visit, one hour
Total number of calories for all food and beverages (summed) purchased for the child during the study visit
Study visit, one hour
Total calories the child consumes
Time Frame: Study visit, one hour
Total number of calories consumed by the child for all food and beverages (summed) during the study visit
Study visit, one hour

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total beverage calories purchased for the adult
Time Frame: Study visit, one hour
Total number of calories for all beverages purchased for the adult during the study visit
Study visit, one hour
Total calories purchased for the adult
Time Frame: Study visit, one hour
Total number of calories for all food and beverages (summed) purchased for the adult during the study visit
Study visit, one hour
Beverage calories the child consumes
Time Frame: Study visit, one hour
Total number of calories consumed by the child for all beverages during the study visit
Study visit, one hour
Beverage calories the adult consumes
Time Frame: Study visit, one hour
Total number of calories consumed by the adult for all beverages during the study visit
Study visit, one hour
Total calories the adult consumes
Time Frame: Study visit, one hour
Total number of calories consumed by the adult for all food and beverages (summed) during the study visit
Study visit, one hour

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Parent sugary beverage purchase intentions for the child
Time Frame: Study visit, 1 hour
Average of intentions for 4 sugary beverages (1 (not at all likely) - 5 (extremely likely))
Study visit, 1 hour
Parent non-sugary beverage purchase intentions for the child
Time Frame: Study visit, 1 hour
Average of intentions for 3 non-sugary beverages (1 (not at all likely) - 5 (extremely likely))
Study visit, 1 hour
Sugary beverage health beliefs and risk perceptions for the child
Time Frame: Study visit, 1 hour
Average of 9 summed items for 4 sugary beverages (1 (strongly disagree) - 5 (strongly agree))
Study visit, 1 hour
Non-sugary beverage health beliefs and risk perceptions for the child
Time Frame: Study visit, 1 hour
Average of 9 summed items for 3 non-sugary beverages (1 (strongly disagree) - 5 (agree))
Study visit, 1 hour
Sugary beverage accuracy of calorie knowledge
Time Frame: Study visit, 1 hour
Average of difference between actual calories in each item from the calories reported by participants across 4 sugary beverages (larger numbers = overestimation)
Study visit, 1 hour
Non-sugary beverage accuracy of calorie knowledge
Time Frame: Study visit, 1 hour
Average of difference between actual calories in each item from the calories reported by participants across 3 non-sugary beverages (larger numbers = overestimation)
Study visit, 1 hour
Sugary beverage accuracy of sugar knowledge
Time Frame: Study visit, 1 hour
Average of difference between actual teaspoons of sugar in each item from the number of teaspoons reported by participants across 4 sugary beverages (larger numbers = overestimation)
Study visit, 1 hour
Non-sugary beverage accuracy of sugar knowledge
Time Frame: Study visit, 1 hour
Average of difference between actual teaspoons of sugar in each item from the number of teaspoons reported by participants across 3 non-sugary beverages (larger numbers = overestimation)
Study visit, 1 hour
Sugary beverage categorical perception of amount of sugar
Time Frame: Study visit, 1 hour
Proportion of 4 sugary beverages coded as just right or too much vs. none or too little
Study visit, 1 hour
Non-sugary beverage categorical perception of amount of sugar
Time Frame: Study visit, 1 hour
Proportion of 3 non-sugary beverages coded as none vs. all other options
Study visit, 1 hour

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 11, 2020

Primary Completion (Actual)

March 12, 2020

Study Completion (Actual)

March 12, 2020

Study Registration Dates

First Submitted

February 4, 2020

First Submitted That Met QC Criteria

February 4, 2020

First Posted (Actual)

February 6, 2020

Study Record Updates

Last Update Posted (Actual)

September 20, 2021

Last Update Submitted That Met QC Criteria

September 13, 2021

Last Verified

September 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • R01DK111558_2
  • R01DK111558 (U.S. NIH Grant/Contract)
  • 33648 (Registry Identifier: AsPredicted)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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