李婷婷，姚杰，姚宁，姚佩珊，AU - Cheng, AU - Schwebel, David C AU - Yang, Yang AU - Wei，何翔，AU - Wang Jieyi, AU - Li, Wanhui AU - hui, AU - tong Hu, Guoqing PY - 2021 DA - 2021/1/29 TI -基于app的儿童伤害预防研究参与者退学相关因素:聚类随机对照试验的二次数据分析基于应用程序的干预措施无意伤害损耗影响因素背景:移动健康(mHealth)干预措施具有覆盖大量人群和改善公众健康的巨大潜力。然而，高流失率威胁着移动医疗干预研究的评估和实施。目的:我们在一项移动健康随机对照试验(RCT)中探讨了与研究参与者流失相关的因素，该试验评估了一项降低中国儿童意外伤害风险的干预措施。方法:采用聚类随机对照试验(cluster RCT)比较两组3-6岁儿童保育员应用程序干预的效果。干预组对儿童进行意外伤害和父母教育，对照组只进行父母教育。该试验在中国长沙纳入2920名研究参与者，持续6个月。参与者参与(使用应用程序)的数据在6个月期间以电子方式收集。采用基于广义线性混合模型的调整优势比(aOR)，分别对干预组和对照组的参与者流失与人口统计学特征、流失与干预参与之间的关联进行了测试和量化。结果:共有来自20所符合条件的幼儿园的2920名护理员参与调查，其中干预组1510名，对照组1410名。 The 6-month attrition rate differed significantly between the two groups (P<.001), at 28.9% (437/1510) in the intervention group and 35.7% (503/1410) in the control group. For the intervention group, the only significant predictor of attrition risk was participants who learned fewer knowledge segments (aOR 2.69, 95% CI 1.19-6.09). For the control group, significant predictors of attrition risk were lower monthly login frequency (aOR 1.48, 95% CI 1.00-2.18), learning fewer knowledge segments (aOR 1.70, 95% CI 1.02-2.81), and shorter learning durations during app engagement (aOR 2.39, 95% CI 1.11-5.15). Demographic characteristics were unrelated to attrition. Conclusions: Engagement in the app intervention was associated with participant attrition. Researchers and practitioners should consider how to best engage participants in app-based interventions to reduce attrition. Trial Registration: Chinese Clinical Trial Registry ChiCTR-IOR-17010438; http://www.chictr.org.cn/showproj.aspx?proj=17376 International Registered Report Identifier (IRRID): RR2-10.1186/s12889-018-5790-1 SN - 1438-8871 UR - //www.mybigtv.com/2021/1/e21636 UR - https://doi.org/10.2196/21636 UR - http://www.ncbi.nlm.nih.gov/pubmed/33512318 DO - 10.2196/21636 ID - info:doi/10.2196/21636 ER -