SEP and the Impact of Price on Food Selection in a Simulated Food Delivery App

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

3464 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-01

Study Completion Date

2024-08-31

Brief Summary

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The goal of this randomised controlled trial is to compare taxation with subsidies to encourage healthier food choices in the out-of-home food sector. Participants will be asked to make hypothetical food choices in an online simulation study of a delivery app. Participants will be randomised into four different intervention groups:

1. Price reduction (10%) on healthier foods
2. Price increase (10%) to less healthy foods
3. A combination of price reduction to healthier foods and price increase to less healthy foods
4. Existing price structure (i.e. control group)

The investigators will further examine effectiveness of these fiscal policies on healthy eating by socioeconomic position to understand whether these policies are equitable.

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Detailed Description

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Conditions

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Food Selection Healthy Eating Eating Behavior

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The design is a randomised controlled trial, with 4 (interventions) x 2 (high vs low SEP) between-subject conditions.

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

This study will be double-blinded, which means that both the participants and the researchers are not aware in which treatment group participants are assigned to.

Study Groups

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Price reduction on healthier foods

* Price reduction of 10% for healthier dishes (based on a score of less than 4 on the UK Nutrient Profile Model (NPM))
* Existing price structure for less healthy dishes (based on a score of 4 or higher on the UK NPM)

Group Type EXPERIMENTAL

Price reduction on healthier foods

Intervention Type BEHAVIORAL

Price reduction (10%) on healthier foods based on the UK NPM

Price increase to less healthy foods

* Price increase of 10% for less healthy dishes (based on a score of less than 4 on the UK NPM)
* Existing price structure for healthier dishes (based on a score of 4 or higher on the UK NPM)

Group Type EXPERIMENTAL

Price increase to less healthy foods

Intervention Type BEHAVIORAL

Price increase (10%) on less healthy foods based on the UK NPM

Combination of price reduction to healthier foods and price increase to less healthy foods

* Price reduction of 10% for healthier dishes (based on a score of less than 4 on the UK NPM)
* Price increase of 10% for less healthy dishes (based on a score of 4 or higher on the UK NPM)

Group Type EXPERIMENTAL

Combination of price reduction on healthier foods and price increase on less healthy foods

Intervention Type BEHAVIORAL

Combination of price reduction (10%) on healthier foods based on the UK NPM and price increase (10%) on less healthy foods based on the UK NPM

Existing price structure (control)

\- No changes in prices

Group Type PLACEBO_COMPARATOR

Control

Intervention Type BEHAVIORAL

Existing price structure

Interventions

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Price reduction on healthier foods

Price reduction (10%) on healthier foods based on the UK NPM

Intervention Type BEHAVIORAL

Price increase to less healthy foods

Price increase (10%) on less healthy foods based on the UK NPM

Intervention Type BEHAVIORAL

Combination of price reduction on healthier foods and price increase on less healthy foods

Combination of price reduction (10%) on healthier foods based on the UK NPM and price increase (10%) on less healthy foods based on the UK NPM

Intervention Type BEHAVIORAL

Control

Existing price structure

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Currently reside in the United Kingdom
* Over the age of 18 years
* Order take-away food for delivery at least once a month
* Can complete the study on a laptop or desktop

Exclusion Criteria

* Any major dietary restrictions (vegan, dairy/lactose-free, gluten-free) or allergies (dairy, eggs, nuts, soy, wheat) that would limit the number of dishes they could choose in the meal selection task

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes