Risk for Alcohol Impaired Driving: From the Laboratory to the Natural Environment
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 230
- 试验地点
- 1
- 主要终点
- Alcohol impaired driving behavior (retrospective)
研究概览
简要总结
This project combined laboratory and ambulatory assessment (AA) methods to test decision making associated with alcohol impaired driving (AID). Participants will complete a laboratory alcohol administration session followed by 6 weeks of mobile assessment. Data from drinking events will be examined to test how individuals make choices about driving or not after consuming alcohol.
详细描述
Building on laboratory findings from the the PI's (McCarthy) previous work, this project is designed to test AID decision making in both the lab and the natural drinking environment in which AID decisions are made.
Participants complete a laboratory alcohol administration session followed by six weeks of multi-method ambulatory assessment. The ambulatory assessment component will include participant report via smartphone, portable breathalizer (BACtrack), and location and movement data passively collected by the smartphone GPS/accelerometer. The combination of these methods will allow for the integration of subjective (e.g., perceived intoxication) and objective (e.g., BrAC, calculated drinking location) data for each drinking episode.
Aim 1 of the project is to test laboratory measures as prospective predictors of AID and examine the role of event-level influences on specific AID decisions.
Aim 2 of the proposed project is to test the potential for a novel intervention to reduce AID using mobile technology. Participants will be randomly assigned to either a full ambulatory assessment or a minimal assessment control condition. The timing of the introduction of AA will also be manipulated within the full ambulatory assessment condition. This design will allow us to test whether the introduction of ambulatory assessment produces changes in AID behavior, as well as whether such changes persist once ambulatory assessment is discontinued. Changes made to the revised application are aimed at ensuring the achievement of both study aims. If Aim 2 is achieved and ambulatory assessment alters AID behavior, the combination of the minimal assessment control condition and the full assessment condition prior to the introduction of ambulatory assessment has sufficient sample size and power to test Aim 1 hypotheses.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Prevention
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 21 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •moderate to heavy drinkers must drive regularly report recent binge drinking fluent in english
排除标准
- •not in treatment for substance use disorder or other psychiatric disorders BMI under 30 no medical conditions contraindicating alcohol consumption
研究组 & 干预措施
BAC Feedback, immediate onset
Participants will receive a"BAC Feedback/Warning" intervention based on their assessed BAC. Participants in this arm will have a warning presented on their smartphone when they provide a breath sample that indicated their BAC has reached a set limit. The cutpoint for this warning is not disclosed but is well below the legal limit for driving. Warning will notify them that their results indicate it is not safe for them to drive.
In this condition, participants will start their 6 week AA portion of their participation immediately after their laboratory session, and will be followed for 6 weeks afterwards.
Comparisons between the two experimental conditions will allow for inferences about the onset and offset of any effects of the "BAC Feedback/Warning" intervention.
干预措施: BAC feedback/warning (Behavioral)
BAC Feedback, delayed onset
Participants will receive the "BAC Feedback/Warning" intervention based on their assessed BAC during drinking events.The cutpoint for this warning is not disclosed but is well below the legal limit for driving. Warning will notify them that their results indicate it is not safe for them to drive.
In this condition, participants will be followed for 6 weeks after their laboratory session prior to starting their 6 week AA portion of their participation.
Comparisons between the two experimental conditions will allow for inferences about the onset and offset of any effects of the "BAC Feedback/Warning" intervention.
干预措施: BAC feedback/warning (Behavioral)
Minimal Assessment Control
Participants will receive the "No BAC Feedback/Warning" intervention. Participants in this condition will complete the laboratory and interview portions of the project. However the AA portion of the project will not contain warning about their BAC (No BAC Feedback/Warning) and will ask fewer questions regarding their AID decisions.
The role of this condition is to provide a baseline comparison of AID behavior for the two active assessment conditions.
干预措施: No BAC feedback/warning (Behavioral)
结局指标
主要结局
Alcohol impaired driving behavior (retrospective)
时间窗: 12 weeks
Participants will provide self-reported driving behavior (yes/no driven a vehicle) after drinking alcohol retrospectively during interview sessions. Participants will complete regular phone interview where their daily driving and drinking behavior will be assessed. The outcome measure of interest will be days when participants report driving (yes/no) after consuming alcohol.
Alcohol impaired driving behavior
时间窗: 12 weeks
Participants will provide self-reported driving behavior (yes/no driven a vehicle) after drinking alcohol during the AA portion. This assessment will be taken from their daily smartphone responses.
Alcohol impaired driving intentions
时间窗: 6 weeks
Participants will provide self-reported intentions to drive after drinking alcohol (Would you drive now? Yes/no) from daily assessments during the AA portion of the project.
次要结局
- Perceived risk of driving(6 weeks)
研究者
Denis McCarthy
Professor
University of Missouri-Columbia