杂志文章@ 14388871 % JMIR出版公司，V 16% N 卡塔尔世界杯8强波胆分析3% P 95 %T简短的电话支持能提高基于web的体重管理干预的参与度吗?随机对照试验%A Dennison,Laura %A Morrison,Leanne %A Lloyd,Scott %A Phillips,Dawn %A Stuart,Beth %A Williams,Sarah %A Bradbury,Katherine %A Roderick,Paul %A Murray,Elizabeth %A Michie,Susan %A Little,Paul %A Yardley,Lucy +南安普顿大学心理学学术单位，海菲尔德校区，南安普顿，SO17 1BJ，英国，44 02380 597657，l.k.dennison@soton.ac.uk %K减肥%K肥胖%K互联网%K坚持%K行为%K随机对照试验%D 2014 %7 28.03.2014 %9原始论文%J J医学互联网Res %G英语%X背景:最近的综述表明，网络干预是有希望的体重管理方法，但它们发现了次优使用的困难。文献表明，为网站用户提供一定程度的人力支持可能会提高使用率和结果。目的:我们在社区环境中传播POWeR(“积极在线减肥”)基于网络的体重管理干预。POWeR包括每周在线会话，强调自我监控、目标设定和认知/行为策略。我们的主要结果是干预的使用情况，我们调查了是否通过添加简短的电话指导来增强干预效果。我们还探讨了短期自我报告体重减轻的组间差异。方法:采用一系列方法招募参与者，包括定向邮寄、当地媒体上的广告、组织网站上的通知和社交媒体。通过在线程序，共有786名成年人被随机分为(1)仅POWeR (n=264)， (2) POWeR +教练(n=247)，或(3)等待列表对照组(n=275)。 Those in the POWeR plus coaching arm were contacted at approximately 7 and 28 days after randomization for short coaching telephone calls aimed at promoting continued usage of the website. Website usage was tracked automatically. Weight was assessed by online self-report. Results: Of the 511 participants allocated to the two intervention groups, the median number of POWeR sessions completed was just one (IQR 0-2 for POWeR only, IQR 0-3 for POWeR plus coach). Nonetheless, a substantial minority completed at least the core three sessions of POWeR: 47 participants (17.8%, 47/264) in the POWeR-only arm and 64 participants (25.9%, 64/247) in the POWeR plus coaching arm. Participants in the POWeR plus coaching group persisted with the intervention for longer and were 1.61 times more likely to complete the core three sessions than the POWeR-only group (χ21=4.93; OR 1.61, 95% CI 1.06-2.47; n=511). An intention-to-treat analysis showed between-group differences in weight loss (F2,782=12.421, P<.001). Both intervention groups reported more weight loss than the waiting list control group. Weight loss was slightly, but not significantly, greater in the POWeR plus coaching group. A large proportion of participants assigned to POWeR plus coaching refused phone calls or were not contactable (57.9%, 143/247). Exploratory analyses identified health and sociodemographic differences between those who did and did not engage in coaching when it was made available to them. Users who engaged with coaching used the intervention more and lost more weight than those who did not. Conclusions: In common with most Web-based intervention studies, usage of POWeR was suboptimal overall. However, our findings suggest that supplementing Web-based weight management with brief human support could improve usage and outcomes in those who take it up. Trial Registration: International Standard Randomized Controlled Trial Number (ISRCTN): 98176068; http://www.controlled-trials.com/ISRCTN98176068 (Archived by WebCite at http://www.webcitation.org/6OKRjM2oy). %M 24681761 %R 10.2196/jmir.3199 %U //www.mybigtv.com/2014/3/e95/ %U https://doi.org/10.2196/jmir.3199 %U http://www.ncbi.nlm.nih.gov/pubmed/24681761