Reducing Sugar-sweetened Beverage Consumption Among Young Adults

This study aims to test sugar-sweetened beverage (SSB) health labeling elements in an online experiment to determine which elements are the most salient among young adults.

Study Overview

• Status: Completed
• Conditions: Health Knowledge, Attitudes, Practice; Intention
• Intervention / Treatment: Other: loss-frame; Other: text-only; Other: no attribution; Other: gain-frame; Other: icon; Other: attribution; Other: No label

• Study Type: Interventional
• Enrollment (Actual): 2971
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • Davis, California, United States, 95616
      • University of California, Davis

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion criteria:

• ≥18 years of age
• current/recent (<1 year of graduation) undergraduate student at 3 specific universities
• English-speaking
• consumes at least 2 SSBs per week

Study Plan

How is the study designed?

Design Details

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

Number of Arms

9

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Loss-frame, text-only, no attribution; Label participants will see is loss-frame, text-only, and with no attribution	Other: loss-frame; loss frame label; Other: text-only; text-only label; Other: no attribution; label with no attribution
Experimental: Gain-frame, text-only, no attribution; Label participants will see is gain-frame, text-only, and with no attribution	Other: text-only; text-only label; Other: no attribution; label with no attribution; Other: gain-frame; gain frame label
Experimental: Loss-frame, icon, no attribution; Label participants will see is loss-frame, icon, and with no attribution	Other: loss-frame; loss frame label; Other: no attribution; label with no attribution; Other: icon; label with icon and text
Experimental: Grain-frame, icon, no attribution; Label participants will see is gain-frame, with an icon, and with no attribution	Other: no attribution; label with no attribution; Other: gain-frame; gain frame label; Other: icon; label with icon and text
Experimental: Loss-frame, icon, attribution; Label participants will see is loss-frame, icon, and with attribution	Other: loss-frame; loss frame label; Other: icon; label with icon and text; Other: attribution; label with attribution
Experimental: Gain-frame, icon, attribution; Label participants will see is grain-frame, icon, and with attribution	Other: gain-frame; gain frame label; Other: icon; label with icon and text; Other: attribution; label with attribution
Experimental: Loss-frame, text-only, attribution; Label participants will see is loss-frame, text-only, and with attribution	Other: loss-frame; loss frame label; Other: text-only; text-only label; Other: attribution; label with attribution
Experimental: Gain-frame, text-only, attribution; Label participants will see is gain-frame, text-only, and with attribution	Other: text-only; text-only label; Other: gain-frame; gain frame label; Other: attribution; label with attribution
Placebo Comparator: No label; Participant will not see a label	Other: No label; No label

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
SSB Intention	Intention to consume SSBs measured by hypothetical selection of a beverage from images of beverage options.	Up to 20 minutes

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
SSB Intention (2)	Measured by survey items assessing intention to consume SSBs on a scale from 1 (not at all likely) to 7 (extremely likely).	Up to 20 minutes
SSB attitudes	Measured by survey items assessing perceived healthfulness of SSBs on a scale from 1 (extremely unhealthy) to 7 (extremely healthy).	Up to 20 minutes
SSB knowledge	Measured by survey items assessing knowledge of number of calories (estimate provided by participant) and sugar (estimated by participant, in teaspoons) contained in SSBs.	Up to 20 minutes
SSB norms	Measured by survey item assessing how often participants perceive their peers to consume SSBs (1 = multiple times a day, 2 = daily, 3 = weekly, 4 = less than once a week, and 5 = never) and item on perception that people who are important to the participant would want them to limit SSB intake, on a scale from 1 (not at all) to 5 (completely) .	Up to 20 minutes

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
SSB self-efficacy	Measured by survey item assessing how confident participant feels in reducing SSB consumption, on a scale from 1 (not at all) to 5 (completely).	Up to 20 minutes
Social interaction	Measured by survey item assessing likelihood participant will encourage others to reduce SSB consumption, on a scale from 1 (not at all) to 5 (completely).	Up to 20 minutes

Collaborators and Investigators

• Sponsor: University of California, Davis
• Collaborators: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
• Investigators: Principal Investigator: Jennifer Falbe, ScD, MPH, University of California, Davis

Study record dates

Study Major Dates

• Study Start (Actual): August 18, 2018
• Primary Completion (Actual): November 17, 2018
• Study Completion (Actual): November 17, 2018

Study Registration Dates

• First Submitted: September 10, 2018
• First Submitted That Met QC Criteria: September 12, 2018
• First Posted (Actual): September 14, 2018

Study Record Updates

• Last Update Posted (Actual): January 23, 2019
• Last Update Submitted That Met QC Criteria: January 18, 2019
• Last Verified: January 1, 2019

More Information

Terms related to this study

• Keywords: Diet; Young Adults; Health messaging
• Other Study ID Numbers: 1124060; 1K01DK113068-01A1 (U.S. NIH Grant/Contract)

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