Shop For Success: Experimental Grocery Store Study | NCT04097262

Studies
Shop For Success: Experimental Grocery Store Study

NCT04097262

Sponsor

USDA Grand Forks Human Nutrition Research Center

Status

Completed

Last Update Posted

Feb 2, 2022Actual

Enrollment

73Actual

Phase

Not Applicable

Conditions

Overweight
Obesity

Interventions

Own-Price Elasticity
Cross-Price Elasticity

Countries

United States

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

Large Document Module

Document Has No Statistical Analysis Plan (SAP)

Derived Section

Miscellaneous Info Module

Version Holder

Status Module

Record Verification Date

Jan 2022

Overall Recruitment Status or Expanded Access Status

Completed

Last Known Status

Not provided

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

Aug 22, 2019Actual

Primary Completion Date

Mar 25, 2020Actual

Completion Date

Mar 25, 2020Actual

First Submitted Date

Sep 18, 2019

First Submission Date that Met QC Criteria

Sep 18, 2019

First Posted Date

Sep 20, 2019Actual

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Jan 18, 2022

Last Update Posted Date

Feb 2, 2022Actual

Oversight Module

Has Data Monitoring Committee (DMC)

Is FDA Regulated Drug

Is FDA Regulated Device

Is Unapproved Device

Not provided

Pediatric Postmarket Surveillance of a Device Product

Not provided

Product Exported from US

Not provided

FDAAA801 Violation

Not provided

Description Module

Brief Summary

The purpose of this research is to study how the price of foods affects food buying choices at the grocery store. The researchers are interested in this topic because the price of foods can have a big impact on what people choose to buy and prices change over time. The researchers are doing this study to see how changes in food prices affect what foods mothers choose for their families.

Detailed Description

It is well known that the price of a given food affects the amount of that food an individual purchases. However, little is known about how specific groups, such as overweight/obese and those with lower incomes, change their food purchasing decisions depending on food price changes. Evidence has shown that these groups have lower quality diets and worse health outcomes than their normal weight and higher income counterparts. Therefore, it is important to gain a better understanding of how food price changes affect purchasing decisions among these populations in order to develop targeted nutrition interventions to improve their diet quality. To investigate this, the researchers will create a laboratory-based grocery store, in which pictures of foods will be used to substitute actual food. Food prices will be indicated on each picture. Participants will be given play money and a budget, and ask them to "purchase" foods in the mock grocery store. The price of food will be changed throughout the study to investigate how participants change their purchasing decisions based on these price changes.

Design Module

Study Type

Interventional

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Not provided

Target Follow-Up Duration

Not provided

Phases

Not Applicable

Interventional Study Design

Allocation

Biospecimen

No data available

No data is available for this block.

Enrollment

73Actual

Arms/Interventions Module

Arm Groups

Label	Type	Description	Intervention Names
Own-Price Elasticity	Experimental	The price of fruit will vary (own-price elasticity) while the price of all other foods in the "mock" grocery store will remain constant.	Other: Own-Price Elasticity
Cross-Price Elasticity	Experimental	The price of fruit will remain constant while the price of other foods in the "mock" grocery store will vary (cross-price elasticity).	Other: Cross-Price Elasticity

Interventions

Name	Type	Description	Arm Group Labels	Other Names
Own-Price Elasticity	Other	The price of fruit will be 75%, 100%, or 125% of the reference price, but the price of other foods will remain the same.	Own-Price Elasticity

Outcomes Module

Primary Outcomes

Measure	Description	Time Frame
Price elasticity of fruit	Percent change in the amount of fruit purchased (gram weight) for every percent change in the price of a given food.	Baseline

Secondary Outcomes

Measure	Description	Time Frame
Nutrient density of purchased foods	Ratio of low nutrient-dense food purchases to high nutrient-dense food purchases	Baseline

Other Outcomes

Not provided

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

Have at least one child up to 18 years of age residing in the household
Primary grocery shopper for the household
No health conditions or food practices that substantially limit food choice
Not currently pregnant
Consent to the study design

Exclusion Criteria:

Male
< 18 years of age
Not a mother, or children not living with subject in their household
No children below the age of 18 years of age
Not the primary grocery shopper for their household
Health conditions or food practices that substantially limit food choice
Currently pregnant

Accepts Healthy Volunteers

Yes

Sex

Female

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

18 Years

Maximum Age

Not provided

Standard Ages

AdultOlder Adult

Study Population

Not provided

Sampling Method

Not provided

Contacts/Locations Module

Central Contacts

Not provided

Overall Officials

Name	Affiliation	Role
James Roemmich, PhD	USDA Grand Forks Human Nutrition Research Center	Principal Investigator

Locations

Facility	Status	City	State	ZIP	Country	Contacts
USDA Grand Forks Human Nutrition Research Center		Grand Forks	North Dakota	58203	United States

IPD Sharing Statement Module

Plan to Share IPD

Description

Not provided

Types

Not provided

Time Frame

Not provided

Access Criteria

Not provided

URL

Not provided

Type	Includes Protocol	Includes SAP	Includes ICF	Document Label	Document Date	Document Uploaded Date	Document File Name
ICF	No	No	Yes	Informed Consent Form	Aug 16, 2019	Jan 18, 2022	ICF_000.pdf

Condition Browse Module

MeSH Terms

ID	Term
D050177	Overweight
D009765	Obesity

Ancestor Terms

ID	Term
D044343	Overnutrition
D009748	Nutrition Disorders
D009750	Nutritional and Metabolic Diseases
D001835	Body Weight

Browse Leaves

Not provided

Browse Branches

Not provided

Intervention Model Description

This study will utilize a three factor design, with one between-subject factor and two within-subject factors. The between-subject factor is participation in a federal food assistance program. The within-subject factors are price change condition and price change scenario.