@文章{信息:doi/10.2196/28638，作者=“Paz Castro, Raquel and Haug, Severin and Debelak, Rudolf and Jakob, Robert and Kowatsch, Tobias and Schaub, Michael P”，标题=“手机参与——基于生活技能的青少年干预及其与参与者特征和结果的关联:基于树的分析”，期刊=“J Med Internet Res”，年=“2022”，月=“1”，日=“19”，卷=“24”，数=“1”，页=“e28638”，关键词=“参与”;生活技能;青少年;移动电话;机器学习;背景:手机提供的生活技能项目是一种新兴的、有希望的促进青少年心理健康和预防药物使用的方式，但人们对青少年实际如何使用它们知之甚少。目的:本研究的目的是确定参与基于手机的生活技能项目及其不同组成部分，以及参与与青少年特征、预期物质使用和心理健康结果之间的联系。方法:我们对干预组(n=750)的数据进行了二级数据分析，这些数据来自一项研究，该研究将针对中学和高中班级招募的青少年的基于手机的生活技能干预与仅评估对照组进行了比较。在为期6个月的干预过程中，参与者每周收到1条短信提示，介绍一个生活技能主题，或鼓励参与者参加测验或个人生活技能培训，或鼓励参与者通过友好竞赛与其他项目参与者分享信息。决策树被用来识别参与的预测因素(使用和主观体验)。 The stability of these decision trees was assessed using a resampling method and by graphical representation. Finally, associations between engagement and intended substance use and mental health outcomes were examined using logistic and linear regression analyses. Results: The adolescents took part in half of the 50 interactions (mean 23.6, SD 15.9) prompted by the program, with SMS text messages being the most used and contests being the least used components. Adolescents who did not drink in a problematic manner and attended an upper secondary school were the ones to use the program the most. Regarding associations between engagement and intended outcomes, adolescents who used the contests more frequently were more likely to be nonsmokers at follow-up than those who did not (odds ratio 0.86, 95{\%} CI 0.76-0.98; P=.02). In addition, adolescents who read the SMS text messages more attentively were less likely to drink in a problematic manner at follow-up (odds ratio 0.43, 95{\%} CI 1.29-3.41; P=.003). Finally, participants who used the program the most and least were more likely to increase their well-being from baseline to 6-month follow-up compared with those with average engagement ($\beta$s=.39; t586=2.66; P=.008; R2=0.24). Conclusions: Most of the adolescents participating in a digital life skills program that aimed to prevent substance use and promote mental health engaged with the intervention. However, measures to increase engagement in problem drinkers should be considered. Furthermore, efforts must be made to ensure that interventions are engaging and powerful across different educational levels. First results indicate that higher engagement with digital life skills programs could be associated with intended outcomes. Future studies should apply further measures to improve the reach of lower-engaged participants at follow-up to establish such associations with certainty. ", issn="1438-8871", doi="10.2196/28638", url="//www.mybigtv.com/2022/1/e28638", url="https://doi.org/10.2196/28638", url="http://www.ncbi.nlm.nih.gov/pubmed/35044309" }