Study of Household Purchasing Patterns, Eating and Recreation (SHoPPER)

Delay Discounting and Household Food Choices

This project examines behavioral and household characteristics associated with food purchasing patterns.

Study Overview

• Status: Completed
• Conditions: Blood Pressure; Dietary Habits; Adiposity

• Study Type: Observational
• Enrollment (Actual): 204

Contacts and Locations

Study Locations

• United States
  • Illinois
    • Chicago, Illinois, United States, 60612
      • Rush University Medical Center

Participation Criteria

Eligibility Criteria

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

• Sampling Method: Non-Probability Sample

Study Population

Chicago households

Description

Inclusion Criteria:

1. Adult individual who reports making at least 75% of household food purchases
2. Resides in City of Chicago, Illinois or surrounding suburbs

Exclusion Criteria:

1. Inability to provide informed consent in English
2. Living in transitional housing or on a college campus
3. Lack of a cellular or land line phone
4. Gang presence or illegal activity in the immediate vicinity of the home, or other factors jeopardizing researcher safety during home visits (e.g., extreme unsanitary conditions)
5. Having a household member, including the primary shopper, with a medical condition or food allergy that substantially influences household food choices (e.g., phenylketonuria, celiac disease)

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Diet Quality of Household Food Purchases	Diet quality was quantified by applying the Healthy Eating Index-2015 (HEI-2015) scoring criteria (https://epi.grants.cancer.gov/hei/) to the nutrient and food group data of purchased foods and beverages. The HEI-2015 scores adherence to the Department of Health and Human Services' 2015 Dietary Guidelines for Americans. Adherence to recommended intakes for 13 key dietary components is scored on continuous scale for each component, and the 13 component scores are then summed to obtain a total score ranging from 0-100. Higher scores reflect closer adherence to the dietary guidelines.	2 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Diet Quality of Dietary Intake	Diet quality was quantified by applying the Healthy Eating Index-2015 (HEI-2015) scoring criteria (https://epi.grants.cancer.gov/hei/) to the nutrient and food group data derived from three 24-hour diet recalls. The HEI-2015 scores adherence to the Department of Health and Human Services' 2015 Dietary Guidelines for Americans. Adherence to recommended intakes for 13 key dietary components is scored on continuous scale for each component, and the 13 component scores are then summed to obtain a total score ranging from 0-100. Higher scores reflect closer adherence to the dietary guidelines.	2 weeks
Home Food Environment	Availability of obesity promoting foods in the home, assessed with an audit-based inventory. The audit captures the presence of 71 "obesity promoting" foods. The sum of these items ranges from 0-71, with higher scores reflecting greater availability in the home.	2 weeks
Percentage of Total Energy Purchased From Non-store Sources (e.g., Fast Food and Take-out/Delivery, Restaurants)	Percentage of total energy (kcal) purchased from all sources other than food stores/supermarkets, including fast food and take-out/delivery, full-service restaurants, vending machines, bars/taverns, and cafeterias.	2 weeks

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline in Systolic Blood Pressure at 12 Months	Change in systolic blood pressure	12 months
Change From Baseline in Body Mass Index at 12 Months	Change in body mass index over 12 months of follow up	12 months

Collaborators and Investigators

• Sponsor: Rush University Medical Center
• Collaborators: University of Illinois at Chicago; University of Minnesota

Publications and helpful links

General Publications

• Appelhans BM, Tangney CC, French SA, Crane MM, Wang Y. Delay discounting and household food purchasing decisions: The SHoPPER study. Health Psychol. 2019 Apr;38(4):334-342. doi: 10.1037/hea0000727.
• French SA, Tangney CC, Crane MM, Wang Y, Appelhans BM. Nutrition quality of food purchases varies by household income: the SHoPPER study. BMC Public Health. 2019 Feb 26;19(1):231. doi: 10.1186/s12889-019-6546-2.
• Appelhans BM, French SA, Tangney CC, Powell LM, Wang Y. To what extent do food purchases reflect shoppers' diet quality and nutrient intake? Int J Behav Nutr Phys Act. 2017 Apr 11;14(1):46. doi: 10.1186/s12966-017-0502-2.

Helpful Links

• SHoPPER study website

Study record dates

Study Major Dates

• Study Start: November 1, 2013
• Primary Completion (Actual): November 1, 2016
• Study Completion (Actual): March 31, 2018

Study Registration Dates

• First Submitted: February 24, 2014
• First Submitted That Met QC Criteria: February 25, 2014
• First Posted (Estimate): February 27, 2014

Study Record Updates

• Last Update Posted (Actual): March 25, 2019
• Last Update Submitted That Met QC Criteria: March 22, 2019
• Last Verified: March 1, 2019

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Overnutrition; Nutrition Disorders; Overweight; Body Weight; Obesity
• Other Study ID Numbers: 12051001