Evaluating the effectiveness of a smartphone app to reduce excessive alcohol consumption: protocol for a factorial randomised control trial
Evaluating the effectiveness of a smartphone app to reduce excessive alcohol consumption: protocol for a factorial randomised control trial
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DOI：
10.1186/s12889-016-3140-8
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发表时间：
2016-07-08
影响因子：
4.5
通讯作者：
Brown, Jamie
中科院分区：
文献类型：
--
作者：
Garnett, Claire;Crane, David;Brown, Jamie
背景资料：过量饮酒是全世界死亡和发病的主要原因，需要采取干预措施帮助人们减少饮酒。智能手机应用程序提供的干预措施有可能帮助有害和危险的饮酒者减少酒精消费。然而，对现有智能手机干预措施的有效性几乎没有评估。除其他方法外，一项系统性审查确定了应用程序可以提供的有前途的模块内容：自我监测和反馈;行动规划;规范反馈;认知偏见再培训;身份改变。该协议报告了一个析因随机对照试验，以评估这五个干预模块，以减少过度饮酒的比较潜力。方法：一个受试者之间的析因随机对照试验。18岁或以上的危险和有害饮酒者正在认真尝试减少饮酒量，在下载“少喝酒”应用程序后，他们将被随机分配到32（25）个实验条件之一。参与者在下载应用程序时完成基线测量，并在1个月后与随访问卷联系。主要结果指标是过去一周饮酒量的变化。次要结果指标是AUDIT评分、应用程序使用数据和应用程序可用性评级的变化。将进行析因受试者间方差分析，以评估五个干预模块对主要和次要结果指标的主要和交互作用。讨论：本研究将确定该应用程序中提供的五个干预模块在多大程度上有助于减少危险和有害饮酒。这是优化和了解应用程序的组成部分可以帮助减少过度饮酒的第一步。本研究的结果将用于为未来的综合治疗应用程序提供信息，并在具有长期结局的确定性随机对照试验中对最小对照进行评价。
Background: Excessive alcohol consumption is a leading cause of death and morbidity worldwide and interventions to help people reduce their consumption are needed. Interventions delivered by smartphone apps have the potential to help harmful and hazardous drinkers reduce their consumption of alcohol. However, there has been little evaluation of the effectiveness of existing smartphone interventions. A systematic review, amongst other methodologies, identified promising modular content that could be delivered by an app: self-monitoring and feedback; action planning; normative feedback; cognitive bias re-training; and identity change. This protocol reports a factorial randomised controlled trial to assess the comparative potential of these five intervention modules to reduce excessive alcohol consumption.Methods: A between-subject factorial randomised controlled trial. Hazardous and harmful drinkers aged 18 or over who are making a serious attempt to reduce their drinking will be randomised to one of 32 ( 25) experimental conditions after downloading the 'Drink Less' app. Participants complete baseline measures on downloading the app and are contacted after 1-month with a follow-up questionnaire. The primary outcome measure is change in past week consumption of alcohol. Secondary outcome measures are change in AUDIT score, app usage data and usability ratings for the app. A factorial between-subjects ANOVA will be conducted to assess main and interactive effects of the five intervention modules for the primary and secondary outcome measures.Discussion: This study will establish the extent to which the five intervention modules offered in this app can help reduce hazardous and harmful drinking. This is the first step in optimising and understanding what component parts of an app could help to reduce excessive alcohol consumption. The findings from this study will be used to inform the content of a future integrated treatment app and evaluated against a minimal control in a definitive randomised control trial with long-term outcomes.