Impact of altering the availability of non-alcoholic and alcoholic drinks on selection and purchasing

Not Applicable

Completed

• Conditions: Excess alcohol consumption; Not Applicable

• Registration Number: ISRCTN11004483
• Lead Sponsor: niversity of Bristol

Brief Summary

2022 Preprint results in https://www.medrxiv.org/content/10.1101/2022.03.04.22271898v1 (added 10/03/2022) 2023 Results article in https://pubmed.ncbi.nlm.nih.gov/36996190/ (added 31/03/2023)

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2021-03-01
• Study Completion: 2021-09-01
• Last Update Posted: 10 April 2023

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 737

Inclusion Criteria

1. Aged 18 years or over;
2. Current Tesco online customer
3. Regularly consume alcohol – beer, cider and/or wine (i.e., at least once a week)
4. Regularly purchase alcohol – beer, cider and/or wine – online at Tesco (i.e., at least once a month, minimum £20 monthly spend on these drinks)
5. Willing to select drinks from 64 options, shown in an online task, to purchase in next online shop at Tesco
(Note: Options will include different brands of beer, cider, wine, alcohol-free beer, alcohol-free cider, alcohol-free wine and soft drinks available at Tesco; no additional drinks from these categories should be added to the Tesco shop)
6. Willing to complete online shop at Tesco, book a delivery (or Click and Collect) slot, and send the details to the research team within 48 hours of the drink selection task
7. Willing to send proof of purchase (i.e., itemised receipt) to the research team within 48 hours of delivery or collection date
8. Have a Tesco delivery or collection address in England or Wales

Exclusion Criteria

Does not meet the inclusion criteria

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
umber of alcohol units selected (with an intention to purchase). Participants will be aware that they will be required to purchase the drink items chosen in the selection task and send proof of this to the research team. Therefore, the primary outcome of selection will be made in the context of intention to purchase and provide evidence of this behaviour. This is measured immediately, i.e. whilst participants are exposed to the availability intervention, and calculated from the selection task data