候选名单控制设计对在线求助者饮酒的影响:一项随机对照试验
Katarina Ulfsdotter Gunnarsson1, Martin Henriksson1, Jim McCambridge2
1Department of Health, Medicine and Caring Sciences, Linköping University, Sweden.
Drug and alcohol dependence
|August 17, 2024
概括
这项研究发现,在即时和延迟访问数字干预之间,自我报告的酒精消费没有显著差异. 然而,被告知他们会等待的参与者对材料的参与度较低.
科学领域:
- 行为科学 行为科学
- 数字健康干预措施 数字健康干预措施
- 临床试验设计 临床试验设计
背景情况:
- 在行为研究中等候名单控制设计可能会产生意想不到的后果.
- 寻求在线帮助饮酒的个人是研究人口.
- 以前的研究表明,等候名单控制的潜在负面影响.
研究的目的:
- 为了估计等待列表设计对酒精消费的影响.
- 为了比较立即与延迟访问数字酒精干预的情况.
- 评估感知到延迟对寻求帮助行为的影响.
主要方法:
- 进行了一项双臂随机对照试验.
- 参与者被随机分配到即时或4周的等待名单组.
- 两组都接受了相同的数字干预,操纵的是关于访问时间的信息.
主要成果:
- 3388名参与者被随机分配;954人提供1个月的随访数据.
- 没有强有力的证据表明各组每周饮酒量存在差异.
- 一个轻微的趋势表明,直接访问组的消费量较低 (IRR = 0.95).
结论:
- 通知参与者延迟访问并没有显著改变自我报告的酒精消费.
- 观察到与干预材料的接触有显著差异.
- 关于访问时间的实验操纵在影响参与方面取得了成功.
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