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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03553043
Other study ID # NI373821
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date May 14, 2018
Est. completion date September 23, 2018

Study information

Verified date August 2021
Source University of Auckland, New Zealand
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

A two-stage qualitative and quantitative study to provide insight into consumers' awareness of energy in alcoholic beverages, and how energy labelling effects consumer behaviour.


Description:

Rationale: In 2016/2017, one in five (19.5%) New Zealand adults (≥15 years and older) had an alcohol drinking pattern that carriers a risk of harming the drinker or another, and one in three (32.9%) young adults aged 18 to 24 years are hazardous drinkers. To reduce alcohol-related harm and help New Zealanders make positive decisions about their alcohol use, strategies are needed that not only inform them about health risks but also alter the environment they find themselves in on a daily basis. Unlike most packaged food products, alcoholic beverages are not required to present a statement of the composition of the product, such as amount of alcohol, energy or the nutrient content. It has been suggested that in the absence of this information, consumers of alcohol have no idea how much energy, alcohol or kilojoules they are consuming. Research indicates that nutrition labelling of food and non-alcoholic beverage products does impact consumer perceptions and product evaluations. A recent poll by Stuff showed that 83% of 3,300 New Zealanders indicated that they want to know what they are consuming and supported placement of ingredients and nutritional information on alcohol products. Objectives: To provide insight into consumers' awareness of energy in alcoholic beverages, and in their views on energy labelling of alcoholic beverages. The project also aims to explore the effects of different types of energy labelling on consumers alcohol purchase behaviour. Design: Two-staged qualitative and quantitative study. - Qualitative stage: Focus groups. - Quantitative stage: Four-arm randomised controlled trial. This qualitative stage aims to test the effects of three different types of alcohol energy labels on alcoholic beverages on (online) purchase behaviour, compared to a control (no label) condition, using an 'online shopping cart'. Recruitment: Panel. Sample size: Qualitative stage: n=36 (six focus groups with six people per group); Quantitative stage: n=600 (n=150 participants per experimental condition).


Recruitment information / eligibility

Status Completed
Enrollment 615
Est. completion date September 23, 2018
Est. primary completion date September 23, 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - are =18 years of age; - having purchased and consumed at least one alcoholic beverage in the past month; - be able to read English; - reside in New Zealand; - be a member of the online panel of "Research Now Survey Sampling International". Exclusion Criteria: - Participants not meeting the eligibility criteria will be excluded.

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Intervention
Energy label condition.
Control
No label

Locations

Country Name City State
New Zealand National Institute for Health Innovation, University of Auckland Auckland

Sponsors (2)

Lead Sponsor Collaborator
University of Auckland, New Zealand Te Hiringa Hauora/Health Promotion Agency

Country where clinical trial is conducted

New Zealand, 

References & Publications (2)

Walker N, McCormack J, Jiang, Y, Lang B, Ni Murchu C. (2018). Energy labelling for alcoholic beverages in New Zealand: Clinical trial. Phase 2 report: Wellington: Health Promotion Agency.

Walker N, McCormack J, Jiang, Y, Lang B, Ni Murchu C. (2018). Energy labelling for alcoholic beverages in New Zealand: Consumer perceptions. Phase 1 report: Focus Groups. Wellington: Health Promotion Agency. ISBN:978-0-478-44956-3.

Outcome

Type Measure Description Time frame Safety issue
Primary Consumer online purchasing behaviour Consumer online purchasing behaviour assessed on an 11-point Juster scale (where 1 = no chance/almost no chance and 11 = certain/practically certain Measured immediately after randomization
Secondary Purchase behaviour Number of alcoholic beverage(s) bought in the online shopping cart Measured immediately after randomization
Secondary Perceived and estimated energy content of displayed product Assessed using a seven-point scale ranging from "very low" to "very high" and the estimated energy content of the product Measured at randomization
Secondary Perceived confidence in estimating energy content of displayed product assessed using a seven-point scale ranging from "not confident at all" to "very confident" Measured immediately after randomization
Secondary Intention to consume displayed product Assessed using a seven-point scale ranging from "would decrease consumption level" to "would increase consumption level" Measured immediately after randomization
Secondary Attitudes towards displayed product On a seven-point rating scale participants will be asked whether they believe the displayed alcoholic product was expensive/cheap, unattractive/attractive, low quality/high quality, unhealthy/healthy, and taste bad/good. Measured immediately after randomization
Secondary Support for displayed label On a seven-point rating scale participants will be asked whether they would support the implementation of the displayed label Measured at randomization
Secondary Attitudes towards alcohol Assessed using the Scale for Measurement of Attitudes Towards Alcohol, a tool used to i) assess people's risk profile regarding the use of alcohol and ii) identify the factors that contribute to determining their attitudes Measured immediately after randomization
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