% a Paz Castro,Raquel % a Haug,Seve卡塔尔世界杯8强波胆分析rin % a Filler,Andreas % a Kowatsch,Tobias % a Schaub,Michael P %+瑞士公共卫生和成瘾研究所，苏黎世大学，Konradstrasse 32，苏黎世，8031，瑞士，41 444481180，raquel.paz@isgf.uzh.ch %K烟草%K酒精饮酒%K青少年%K手机%K治疗结果%D 2017 %7 01.11.2017 %9背景:尽管手机提供的戒烟计划是一种很有前途的方式，以促进青少年戒烟，很少知道青少年可能会实际使用它们。目的:本研究的目的是确定青少年参与手机戒烟计划的轨迹随着时间的推移，以及这些轨迹与基线特征和治疗结果的关系。方法:我们对来自一项研究(N=1418)的数据集进行二次数据分析，该研究比较了在手机上提供的综合戒烟和酒精干预与仅戒烟干预对职业和高中班级招募的青少年(N=1418)的影响。在3个月的干预期间，两组参与者每周都收到一条短信提示，要么评估与吸烟相关的目标行为，要么鼓励他们参加测试或短信比赛。进行序列分析以确定交战轨迹。进行分析以确定参与轨迹的预测因素以及参与轨迹与治疗结果之间的关联。结果:出现了三种接触轨迹:(1)稳定接触(646/1418,45.56%)，(2)减少接触(501/1418,35.33%)，(3)稳定不接触(271/1418,19.11%)。那些更年轻、没有移民背景、认为戒烟更有益、在基线评估前报告酗酒的青少年更有可能表现出稳定的敬业度。由于在随访时参与程度较高和参与程度较低的参与者所达到的范围不同，我们对参与轨迹和吸烟结果之间的关系进行了三种统计模型(完整病例、最后一次观察结转和多重归责)的测试。 For 7-point smoking abstinence, no association was revealed to be statistically significant over all three models. However, decreasing engagement with the program was associated over all three models, with greater reductions in daily tobacco use than nonengagement. Conclusions: The majority of tobacco-smoking adolescents engaged extensively with a mobile phone–based smoking cessation program. However, not only stable engagement but also decreasing engagement with a program might be an indicator of behavioral change. Measures to avoid nonengagement among adolescents appear especially necessary for older smokers with an immigrant background who do not drink excessively. In addition, future studies should not only examine the use of specific program components but also users’ engagement trajectories to better understand the mechanisms behind behavioral change. %M 29092811 %R 10.2196/jmir.7928 %U //www.mybigtv.com/2017/11/e356/ %U https://doi.org/10.2196/jmir.7928 %U http://www.ncbi.nlm.nih.gov/pubmed/29092811