Women's Responses to Adjusted Product Placement and Its Effects on Diet - 2

NCT03573973 | Unknown

• 1 other identifier: 20986
• Study Type: interventional
• Target: 667
• Locations: 1 country
• Sites: 1

Brief Summary

This study is the largest supermarket trial internationally and will assess the effectiveness and cost-effectiveness of improving the placement of fresh fruit and vegetables in discount supermarkets in improving the fresh fruit and vegetable purchasing of women aged 18-45 years.

Conditions

Diet Modification

Keywords

Dietary inequalities; Public Health; Choice architecture; Supermarkets

Outcome Measures

Primary Outcomes (1)

• Participant's weekly fruit and vegetable purchasing patterns

  These data will be obtained through the retailer's loyalty card scheme and provide information about the number of items of each product purchased at each store visit.

  0-6 month period post-refurbishment

Secondary Outcomes (6)

• Women's dietary quality

  3 and 6 month follow-up post intervention commencement

• Children's dietary quality

  3 and 6 month follow-up post intervention commencement

• Women's daily fruit and vegetable intake

  3 and 6 months follow-up post intervention commencement

• Weekly store sales of fresh fruit and vegetables

  0-3 and 0-6 month periods post-refurbishment

• To determine whether change in participants' in fruit and vegetable purchasing patterns (intervention effects) differ according to their level of educational attainment

  0-6 month period post-refurbishment

Study Arms (2)

Fresh fruit and vegetable placement intervention

EXPERIMENTAL

The intervention is a store refurbishment programme that includes the creation of a new fresh fruit and vegetable section at the store entrance with expanded range thus improving the availability and position of fresh fruit and vegetables.

Other: Improved product placement of fresh fruit and vegetables

Control

SHAM COMPARATOR

The control condition is the existing store layout with a limited range of fresh fruit and vegetables that are placed at the back of the store.

Other: Sham comparator

Interventions

Improved product placement of fresh fruit and vegetables OTHER

The intervention includes the creation of a new fresh fruit and vegetable section at the store entrance with expanded range thus improving the placement (availability and position) of fresh fruit and vegetables.

Fresh fruit and vegetable placement intervention

Sham comparator OTHER

The control condition is the existing store layout with a limited range of fresh fruit and vegetables that are placed at the back of the store.

Control

Eligibility Criteria

• Age: 18 Years - 45 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Women aged 18-60 years
• Hold a store loyalty card
• Shop regularly in a study store
• Shoppers who choose items in-store but opt for home delivery

You may not qualify if:

• Women under the age of 18 or over 60 years
• Males or children
• Irregular shopper or online-only shopper
• Do not hold store loyalty card

Sponsors & Collaborators

• University Hospital Southampton NHS Foundation Trust: lead
• National Institute for Health Research, United Kingdom: collaborator
• Medical Research Council: collaborator
• University of Southampton: collaborator
• City, University of London: collaborator

Study Sites (1)

Univeristy of Southampton

Southampton, Hampshire, SO16 6YD, United Kingdom

Location

Related Publications (4)

• Vogel C, Crozier S, Dhuria P, Shand C, Lawrence W, Cade J, Moon G, Lord J, Ball K, Cooper C, Baird J. Protocol of a natural experiment to evaluate a supermarket intervention to improve food purchasing and dietary behaviours of women (WRAPPED study) in England: a prospective matched controlled cluster design. BMJ Open. 2020 Feb 10;10(2):e036758. doi: 10.1136/bmjopen-2020-036758.

  PMID: 32047023 BACKGROUND

• Muir S, Dhuria P, Roe E, Lawrence W, Baird J, Vogel C. UK government's new placement legislation is a 'good first step': a rapid qualitative analysis of consumer, business, enforcement and health stakeholder perspectives. BMC Med. 2023 Jan 26;21(1):33. doi: 10.1186/s12916-023-02726-9.

  PMID: 36703194 BACKGROUND

• Muir S, Dhuria P, Vogel C. Government must proceed with landmark anti-obesity regulations in England. BMJ. 2022 Sep 30;378:o2358. doi: 10.1136/bmj.o2358. No abstract available.

  PMID: 36180089 BACKGROUND

• Baird J, Dhuria P, Payne H, Crozier S, Lawrence W, Vogel C. Implementation of a UK supermarket intervention to increase purchasing of fresh fruit and vegetables: process evaluation of the WRAPPED natural experiment. Int J Behav Nutr Phys Act. 2024 Nov 11;21(1):128. doi: 10.1186/s12966-024-01679-3.

  PMID: 39529139 DERIVED

MeSH Terms

Interventions

Vegetables

Intervention Hierarchy (Ancestors)

Food; Diet, Food, and Nutrition; Physiological Phenomena; Food and Beverages

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: Natural experiment with prospective matched controlled cluster design. The setting is a UK discount supermarket chain.

Study Record Dates

• First Submitted: April 25, 2018
• First Posted: June 29, 2018
• Study Start: May 9, 2018
• Primary Completion: April 30, 2023
• Study Completion: October 31, 2023
• Last Updated: May 15, 2023

Record last verified: 2022-05

Data Sharing

• IPD Sharing: Will not share

Locations

GB (1)