Investigating the Effect of Alcohol Serving Size and Calorie Information on Alcohol Consumption: A Real-world Experiment
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 312
- 试验地点
- 2
- 主要终点
- Alcohol units
研究概览
简要总结
The present study aims to investigate whether alcohol consumption is reduced when participants are shown calorie information of alcohol products, compared with when calorie information is absent. We also wish to see whether alcohol consumption levels are reduced when changing the serving sizes available to participants.
详细描述
We will examine the effect of alcohol calorie information on calorie and alcohol unit consumption in a semi-naturalistic real-world experiment by randomising pub quiz evenings to alcohol calorie information vs. absence of calorie information (control). Because current evidence for alcohol calorie information from online hypothetical choice experiments suggests any impact on alcohol consumption may be null or very small, we will compare and benchmark the size of any potential effect of alcohol calorie information to another public health alcohol intervention known to reduce alcohol consumption (alcohol serving size). We will achieve this by also randomizing evenings to normal sized servings of alcohol (control) vs. reduced serving sizes. In addition to examining effects of interventions on what people drink and eat during the pub quiz, we will examine alcohol and energy intake after the pub quiz to probe for potential compensatory behaviour in response to interventions. Because it is currently unclear how useful consumers find alcohol information when implemented in real-world conditions, we will also examine the extent to which participants perceive the interventions to be effective.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Consume alcohol on a regular basis (at least one UK unit per week)
- •Be aged 18 or over
排除标准
- •Have a current or previously diagnosed alcohol use disorder
研究组 & 干预措施
Calorie information present, serving size reduced
Participants will be presented with calorie information of alcohol products, and will have a restricted selection of serving sizes of drinks available to them.
干预措施: Calorie information manipulation (Behavioral)
Calorie information present, serving size reduced
Participants will be presented with calorie information of alcohol products, and will have a restricted selection of serving sizes of drinks available to them.
干预措施: Serving size manipulation (Behavioral)
Calorie information present, serving size typical
Participants will be presented with calorie information of alcohol products, and the serving sizes of drinks available to participants will not be manipulated.
干预措施: Calorie information manipulation (Behavioral)
Calorie information present, serving size typical
Participants will be presented with calorie information of alcohol products, and the serving sizes of drinks available to participants will not be manipulated.
干预措施: Serving size manipulation (Behavioral)
Calorie information absent, serving size reduced
Participants will not be presented with calorie information of alcohol products, and will have a restricted selection of serving sizes of drinks available to them.
干预措施: Calorie information manipulation (Behavioral)
Calorie information absent, serving size reduced
Participants will not be presented with calorie information of alcohol products, and will have a restricted selection of serving sizes of drinks available to them.
干预措施: Serving size manipulation (Behavioral)
Calorie information absent, serving size typical
Participants will not be presented with calorie information of alcohol products, and the serving sizes of drinks available to participants will not be manipulated.
干预措施: Calorie information manipulation (Behavioral)
Calorie information absent, serving size typical
Participants will not be presented with calorie information of alcohol products, and the serving sizes of drinks available to participants will not be manipulated.
干预措施: Serving size manipulation (Behavioral)
结局指标
主要结局
Alcohol units
时间窗: Duration of the evening (approximately 3 hours and 15 minutes)
Amount of alcohol units consumed in the evening.
Total calorie consumption
时间窗: Duration of the evening (approximately 3 hours and 15 minutes)
The amount of calories consumed during the evening.
次要结局
- Perceived message effectiveness(The day after the intervention)
- Follow-up energy intake(Immediately after the intervention)
- Bar snack consumption (calories)(Duration of the evening (approximately 3 hours and 15 minutes))