Benkeser David, Horvath Keith, Reback Cathy J, Rusow Joshua, Hudgens Michael
Department of Biostatistics and Bioinformatics, Emory University.
Department of Psychology, University of California, San Diego.
Stat Biosci. 2020 Dec;12(3):446-467. doi: 10.1007/s12561-020-09274-3. Epub 2020 Mar 25.
TechStep is a randomized trial of a mobile health interventions targeted towards transgender adolescents. The interventions include a short message system, a mobile-optimized web application, and electronic counseling. The primary outcomes are self-reported sexual risk behaviors and uptake of HIV preventing medication. In order that we may evaluate the efficacy of several different combinations of interventions, the trial has a sequentially randomized design. We use a causal framework to formalize the estimands of the primary and key secondary analyses of the TechStep trial data. Targeted minimum loss-based estimators of these quantities are described and studied in simulation.
TechStep是一项针对跨性别青少年的移动健康干预随机试验。干预措施包括短信系统、移动优化网络应用程序和电子咨询。主要结果是自我报告的性风险行为和艾滋病毒预防药物的使用情况。为了评估几种不同干预组合的效果,该试验采用了序贯随机设计。我们使用因果框架来规范TechStep试验数据主要和关键次要分析的估计量。在模拟中描述并研究了这些量基于最小损失的靶向估计量。