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首页> 外文期刊>BMC Medical Informatics and Decision Making >Key changes to improve social presence of a virtual health assistant promoting colorectal cancer screening informed by a technology acceptance model
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Key changes to improve social presence of a virtual health assistant promoting colorectal cancer screening informed by a technology acceptance model

机译：改善虚拟健康助理的社会存在的关键变化促进技术验收模型了解结直肠癌筛查

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Understanding how older, minoritized patients attend to cues when interacting with web-based health messages may provide opportunities to improve engagement with novel health technologies. We assess acceptance-promoting and acceptance-inhibiting cues of a web-based, intervention promoting colorectal cancer (CRC) screening with a home stool test among Black women. Focus group and individual interview data informed iterative changes to a race- and gender-concordant virtual health assistant (VHA). A user-centered design approach was used across 3 iterations to identify changes needed to activate cues described as important; such as portraying authority and expertise. Questionnaire data were analyzed using non-parametric tests for perceptions of cues. Analysis was guided by the Technology Acceptance Model. Perceptions of interactivity, social presence, expertise, and trust were important cues in a VHA-delivered intervention promoting CRC screening. Features of the web-based platform related to ease of navigation and use were also discussed. Participant comments varied across the 3 iterations and indicated acceptance of or a desire to improve source cues for subsequent iterations. We highlight the specific key changes made at each of three iterative versions of the interactive intervention in conjunction with user perception of changes. Virtual agents can be adapted to better meet patient expectations such as being a trustworthy and expert source. Across three evolving versions of a Black, VHA, cues for social presence were particularly important. Social presence cues helped patients engage with CRC screening messages delivered in this novel digital context. When using a VHA to disseminate health information, cues associated with acceptability can be leveraged and adapted as needed for diverse audiences. Patient characteristics (age, identity, health status) are important to note as they may affect perceptions of a novel health technologies ease of use and relevancy according to the leading models.
机译：了解与基于网络的健康信息互动时，少量患者出席提示的程度可能会提供改进与新型健康技术的参与的机会。我们评估促进和验收抑制促进促进结直肠癌（CRC）筛选的基于网络的干预措施，并在黑人女性中进行家庭粪便测试。焦点小组和个人访谈数据对比赛和性别协调的虚拟健康助理（VHA）的迭代变更。在3个迭代中使用了一种用户中心的设计方法，以识别激活称为重要性的提示所需的更改;比如描绘权威和专业知识。使用非参数测试分析问卷数据以进行提示的看法。通过技术验收模型进行分析。互动，社会存在，专业知识和信任的看法是促进CRC筛查的VHA交付干预中的重要提示。还讨论了与易于导航和使用相关的基于网络的平台的功能。参与者评论在3个迭代中变化，并指出了接受或改进后续迭代源提示的愿望。我们突出了与用户对变化的认识到的三个迭代版本中的每一个的特定关键改变。虚拟代理可以适应更好地满足患者期望，例如是一个值得信赖和专家来源。横跨一个黑色，VHA的发展版本，社会存在的提示尤为重要。社会存在提示帮助患者与在这部新颖的数字背景下交付的CRC筛选信息进行。当使用VHA传播健康信息时，可以根据需要利用和适应可接受性相关的线索以获得各种受众。患者特征（年龄，身份，健康状况）很重要，因为它们可能影响新的健康技术的看法易于使用和相关性的关注。

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