Department of Psychiatry, Addiction Center, University of Michigan, Ann Arbor, MI, United States.
Injury Prevention Center, University of Michigan, Ann Arbor, MI, United States.
JMIR Mhealth Uhealth. 2021 Jan 15;9(1):e24424. doi: 10.2196/24424.
Substance use among adolescents and emerging adults continues to be an important public health problem associated with morbidity and mortality. Mobile health (mHealth) provides a promising approach to deliver just-in-time adaptive interventions (JITAIs) to prevent escalation of use and substance use-related consequences.
This pilot study aims to describe the iterative development and initial feasibility and acceptability testing of an mHealth smartphone app, called MiSARA, designed to reduce escalation in substance use.
We used social media advertisements to recruit youth (n=39; aged 16-24 years, who screened positive for past-month binge drinking or recreational cannabis use) with a waiver of parental consent. Participants used the MiSARA app for 30 days, with feasibility and acceptability data reported at a 1-month follow-up. We present descriptive data regarding behavior changes over time.
The results show that most participants (31/39, 79%) somewhat liked the app at least, with most (29/39, 74%) rating MiSARA as 3 or more stars (out of 5). Almost all participants were comfortable with self-reporting sensitive information within the app (36/39, 92%); however, most participants also desired more interactivity (27/39, 69%). In addition, participants' substance use declined over time, and those reporting using the app more often reported less substance use at the 1-month follow-up than those who reported using the app less often.
The findings suggest that the MiSARA app is a promising platform for JITAI delivery, with future trials needed to optimize the timing and dose of messages and determine efficacy.
青少年和刚成年人群体中的物质使用问题仍然是一个重要的公共卫生问题，会导致发病率和死亡率上升。移动健康（mHealth）为提供及时自适应干预（JITAI）提供了一个很有前景的方法，以防止使用量的增加和与物质使用相关的后果。
本试点研究旨在描述一种名为 MiSARA 的移动健康智能手机应用程序的迭代开发以及初步的可行性和可接受性测试，该应用程序旨在减少物质使用的升级。
我们使用社交媒体广告招募了 39 名年龄在 16-24 岁之间的年轻人（过去一个月筛查出暴饮或消遣性大麻使用呈阳性），他们的父母同意放弃同意。参与者使用 MiSARA 应用程序 30 天，并在 1 个月的随访中报告可行性和可接受性数据。我们展示了关于随时间变化的行为变化的描述性数据。
结果表明，大多数参与者（31/39，79%）至少有点喜欢该应用程序，大多数（29/39，74%）将 MiSARA 评为 3 星或以上（满分 5 星）。几乎所有参与者都对在应用程序中报告敏感信息感到舒适（36/39，92%）；然而，大多数参与者也希望有更多的互动性（27/39，69%）。此外，参与者的物质使用随着时间的推移而减少，在 1 个月的随访中，报告经常使用该应用程序的参与者比报告较少使用该应用程序的参与者报告的物质使用量更少。
这些发现表明，MiSARA 应用程序是 JITAI 传递的一个很有前途的平台，需要进一步的试验来优化消息的时间和剂量，并确定疗效。
