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Completed

NCT Number: NCT03553043

Energy Labelling for Alcohol Drinks in New Zealand: Consumers Perceptions and Impacts on Purchase Behaviour

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.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

National Institute for Health Innovation, University of Auckland

Auckland, New Zealand

About this study

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).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Intervention

Behavioral

Energy label condition.

Control

Behavioral

No label

Primary outcomes

  1. Consumer online purchasing behaviour

    Time frame: Measured immediately after randomization

    Consumer online purchasing behaviour assessed on an 11-point Juster scale (where 1 = no chance/almost no chance and 11 = certain/practically certain

Secondary outcomes

  1. Purchase behaviour

    Time frame: Measured immediately after randomization

    Number of alcoholic beverage(s) bought in the online shopping cart

  2. Perceived and estimated energy content of displayed product

    Time frame: Measured at randomization

    Assessed using a seven-point scale ranging from "very low" to "very high" and the estimated energy content of the product

  3. Perceived confidence in estimating energy content of displayed product

    Time frame: Measured immediately after randomization

    assessed using a seven-point scale ranging from "not confident at all" to "very confident"

  4. Intention to consume displayed product

    Time frame: Measured immediately after randomization

    Assessed using a seven-point scale ranging from "would decrease consumption level" to "would increase consumption level"

  5. Attitudes towards displayed product

    Time frame: Measured immediately after randomization

    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.

  6. Support for displayed label

    Time frame: Measured at randomization

    On a seven-point rating scale participants will be asked whether they would support the implementation of the displayed label

  7. Attitudes towards alcohol

    Time frame: Measured immediately after randomization

    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

Sponsors and collaborators

Lead sponsor

University of Auckland, New Zealand

Other

Collaborators

  • Te Hiringa Hauora/Health Promotion Agency

Registry information

Important dates

Study start
2018
Primary completion
2018
Study completion
2018
First posted
Jun 12, 2018
Registry last updated
Aug 19, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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