A Visualization Tool to Analyse Usage of Web-Based Interventions: The Example of Positive Online Weight Reduction (POWeR).
A Visualization Tool to Analyse Usage of Web-Based Interventions: The Example of Positive Online Weight Reduction (POWeR).
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DOI：
10.2196/humanfactors.4310
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发表时间：
2015-05-19
影响因子：
2.7
通讯作者：
Yardley L
中科院分区：
文献类型：
--
作者：
Arden-Close EJ;Smith E;Bradbury K;Morrison L;Dennison L;Michaelides D;Yardley L
在基于Web的干预中，Atrial是一个重要的问题。因此，本研究旨在确定网络使用与此类干预措施的受益之间的关系。已经开发了一种可视化工具，使研究人员能够更容易地检查关于干预使用的大型数据集，这些数据集很难单独使用传统的描述性或统计技术。本文演示了如何使用可视化工具来探索参与者使用基于Web的体重管理干预的模式，称为“积极的在线减肥（POWeR）”。“我们还演示了如何使用可视化工具来执行后续的使用模式，参与者特征和干预结果之间的关联的统计分析。可视化工具用于分析来自132名参与者的数据，这些参与者至少访问了一次POWeR干预。在参与者访问了最初的核心POWeR会话后，可选会话的使用率有所下降，但许多用户仍然继续完成目标和体重审查。与食物日记和步骤日记相关的POWeR工具最常被重复使用。参与者的特征和其他干预成分的使用差异，确定参与者谁没有选择访问可选POWeR会议（除了最初的核心会议）或重复使用的食物和步骤日记。重复使用步骤日记和获得支持工具与更大的体重减轻有关。可视化工具提供了一种快速有效的方法来探索Web使用模式，这使得进一步分析不同的使用模式是否与参与者的特征或干预结果的差异相关。建议进一步使用可视化技术，以（1）更快、更有效地理解大型数据集;（2）确定基于网络的干预措施中可能的有效成分，从而增强其可能提供的益处;（3）指导未来干预措施的设计（或重新设计），通过使用户能够轻松访问有价值的干预内容/工具，促进更多的使用和参与。国际标准随机对照试验编号（ISRCTN）：31685626; http://www.isrctn.com/ISRCTN31685626（由WebCite存档，网址为http：//www.webcitation.org/6YXYIw9vc）。
Attrition is a significant problem in Web-based interventions. Consequently, this research aims to identify the relation between Web usage and benefit from such interventions. A visualization tool has been developed that enables researchers to more easily examine large datasets on intervention usage that can be difficult to make sense of using traditional descriptive or statistical techniques alone. This paper demonstrates how the visualization tool was used to explore patterns in participants’ use of a Web-based weight management intervention, termed "positive online weight reduction (POWeR)." We also demonstrate how the visualization tool can be used to perform subsequent statistical analyses of the association between usage patterns, participant characteristics, and intervention outcome. The visualization tool was used to analyze data from 132 participants who had accessed at least one session of the POWeR intervention. There was a drop in usage of optional sessions after participants had accessed the initial, core POWeR sessions, but many users nevertheless continued to complete goal and weight reviews. The POWeR tools relating to the food diary and steps diary were reused most often. Differences in participant characteristics and usage of other intervention components were identified between participants who did and did not choose to access optional POWeR sessions (in addition to the initial core sessions) or reuse the food and steps diaries. Reuse of the steps diary and the getting support tools was associated with greater weight loss. The visualization tool provided a quick and efficient method for exploring patterns of Web usage, which enabled further analyses of whether different usage patterns were associated with participant characteristics or differences in intervention outcome. Further usage of visualization techniques is recommended to (1) make sense of large datasets more quickly and efficiently; (2) determine the likely active ingredients in Web-based interventions, and thereby enhance the benefit they may provide; and (3) guide in designing (or redesigning) of future interventions to promote greater use and engagement by enabling users to easily access valued intervention content/tools. International Standard Randomized Controlled Trial Number (ISRCTN): 31685626; http://www.isrctn.com/ISRCTN31685626 (Archived by WebCite at http://www.webcitation.org/6YXYIw9vc).