Google Health Search Trial (GHST)
2019年4月11日 更新者：Johns Hopkins University
Accuracy of Differential Diagnosis From Google Health Search and Impact on Clinical Encounters
There are large differences in knowledge between patients and healthcare providers (i.e.
physicians, physician assistants and nurse practitioners), and there is a strong interest on the part of both industry and academia to reduce the gap in knowledge between patients and healthcare providers.
Currently, about 1 in 20 searches on Google are health related.
Among internet users, 72% reported searching for health information, and among persons who use mobile phones, 31% of cell phone users and 52% of smartphone users have looked up health or medical information.
Oftentimes, patients will search on Google or other search engines in order to find health conditions that explain their symptoms prior to visiting their healthcare provider.
With the launch of Google's new health search tools for mobile devices (i.e.
smartphones, tablets, etc.) it is important to understand how patients use these search platforms and what their effects are on clinical encounters.
The main objective of this study is to understand the accuracy of differential diagnoses generated by Google searching; the investigators hypothesize that searching on Google using a tablet or mobile device will be more accurate than not using any search tool, and that the new health search experience will improve accuracy over the standard search platform.
研究概览
研究类型
介入性
注册 (实际的)
300
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
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Maryland
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Baltimore、Maryland、美国、21287
- Johns Hopkins Hospital
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Baltimore、Maryland、美国、21224
- Johns Hopkins Bayview Medical Center
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Adult patient >= 18 years of age
- Presenting for care at urgent care or emergency department
- In search of a diagnosis to explain a new symptom or group of symptoms
Exclusion Criteria:
- Not literate, defined as lacking the ability to read and write (self-reported)
- Non-English Speaking (self-reported)
- Not mentally competent to provide consent due to inability to understand relevant information due to deficit in intelligence (e.g. mental retardation), memory (e.g., advanced dementia or significant delirium), or attention span (e.g., Attention Deficit Disorder (ADD) or mania) based on prior documentation in medical records or as judged by the researchers)
- Unable to use phone/tablet for any mental or physical impairment (e.g., blind) (self-reported)
- Exacerbation of chronic condition (self-reported)
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：其他
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的：Health Search
Access to Health Knowledge Panels and Symptom Search Tool.
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实验性的：Standard Search
No access to Health Knowledge Panels and Symptom Search Tool, but access to prior version of Google search.
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无干预：No Search
No access to Health Knowledge Panels, Symptom Search Tool, prior version of Google search, or mobile device.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Accuracy of patient's pre-visit differential diagnosis after Google searching on a tablet or mobile phone.
大体时间：Assessing diagnostic accuracy from baseline to up to one hour post-clinical encounter.
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Proportion of patient's pre-visit differential diagnosis meeting the criteria of "match" with clinician post-visit differential diagnosis (i.e.
Two of the three conditions on the clinician's differential diagnosis were more likely to be present in the patient's pre-visit assessment when a tablet or mobile phone was present).
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Assessing diagnostic accuracy from baseline to up to one hour post-clinical encounter.
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Accuracy of differential diagnosis of Health Search vs. Standard Search
大体时间：Assessing diagnostic accuracy from baseline to up to one hour post-clinical encounter.
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Proportion of patient's pre-visit differential diagnosis meeting the criteria of "match" with clinician post-visit differential diagnosis comparing Arm 1 (i.e.
Health Search) vs. Arm 2 (i.e.
Standard Search).
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Assessing diagnostic accuracy from baseline to up to one hour post-clinical encounter.
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其他结果措施
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Changes in anxiety on a visual analog scale
大体时间：Assessing a change in anxiety from baseline to up to one hour post clinical encounter.
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Comparing changes in anxiety (pre-clinical encounter vs. post-clinical encounter) among treatment arms.
(Health Search vs. Standard Search).
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Assessing a change in anxiety from baseline to up to one hour post clinical encounter.
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
合作者
调查人员
- 首席研究员：Seth S Martin, MD, MHS、Johns Hopkins School of Medicine
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- "Health Fact Sheet." Pew Research Center, Washington D.C. (December 16, 2013). http://www.pewinternet.org/fact-sheets/health-fact-sheet/.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2016年9月7日
初级完成 (实际的)
2017年8月9日
研究完成 (实际的)
2017年8月15日
研究注册日期
首次提交
2017年2月16日
首先提交符合 QC 标准的
2017年3月2日
首次发布 (实际的)
2017年3月8日
研究记录更新
最后更新发布 (实际的)
2019年4月16日
上次提交的符合 QC 标准的更新
2019年4月11日
最后验证
2019年4月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.