Price Changes and Nutrient Profiling Among Adult Grocery Shoppers

Not Applicable

Completed

• Conditions: Nutrition; Food Purchases
• Interventions: Behavioral: Price Changes; Behavioral: Nutrient profiling

• Registration Number: NCT02376530
• Lead Sponsor: State University of New York at Buffalo

Brief Summary

The purpose of the research is to examine the association between price changes, nutrient profiling, and grocery food purchases among household grocery shoppers.

Detailed Description

Participants will be asked to select a week's worth of groceries for their household from a virtual online grocery store. Shoppers will be randomly assigned to one of four conditions (control, nutrient profiling, price change, nutrient profiling and price change).

Study Timeline

• Study Start: 2012-09
• Study First Submitted: 2014-07-18
• Study First Submitted QC: 2015-02-24
• Study First Posted: 2015-03-03
• Primary Completion: 2015-04
• Study Completion: 2015-04
• Results First Submitted: 2016-04-27
• Results First Submitted QC: 2017-01-11
• Results First Posted: 2017-03-06
• Status Verified: 2020-10
• Last Update Submitted: 2020-10-01
• Last Update Posted: 2020-10-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 788

Inclusion Criteria

• primary household grocery shopper
• at least 19 years old
• one or more child (2-18yrs) living full time in the household

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Exclusion Criteria

• not the primary household grocery shopper
• no dietary, medical, or psychopathology conditions that could interfere with the study
• under the age 19
• no children (2-18yrs) living full time in the household

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
Price change	Price Changes	Price changes will be present during shopping session.
Nutrient profiling and price change	Price Changes	Nutrient profiling system and price changes will be present during shopping session.
Nutrient profiling and price change	Nutrient profiling	Nutrient profiling system and price changes will be present during shopping session.
Nutrient profiling	Nutrient profiling	Nutrient profiling system will be present during shopping session.

Primary Outcome Measures

Name	Time	Method
Nutritional Quality of Food Purchases	Participants were followed for one shopping session, an average of 2.5 hours	The Overall Nutrient Quality Index (ONQI) was used to assess nutritional quality of foods purchased. The ONQI is a 1 - 100 scale in which higher numbers indicate higher nutritional quality. Each food is given a score based on a ratio with positive health nutrients in the numerator and detrimental health nutrients in the denominator, based on a proprietary algorithm created by NuVal. The average ONQI score for all the groceries purchases was used as the outcome measure, of ONQI scores on a scale.

Trial Locations

Locations (1)

University at Buffalo; 🇺🇸 Buffalo, New York, United States