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首页> 外文期刊>Advanced Biomedical Engineering >Development and Evaluation of an End-User System for Retrieving Case Data from a Hospital Information System Supporting Complex Search Conditions Involving Multiple Data Tables
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Development and Evaluation of an End-User System for Retrieving Case Data from a Hospital Information System Supporting Complex Search Conditions Involving Multiple Data Tables

机译：最终用户系统的开发和评估，该系统用于从支持复杂查询条件（涉及多个数据表）的医院信息系统中检索病例数据

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Although hospital information systems (HIS) have recently become more widely used, data stored in HIS databases are not fully utilized in clinical research. One major reason is the lack of suitable tools to utilize the stored data for clinical research. Patient eligibility criteria for clinical studies often consist of multiple conditions incorporating logical operations across multiple data tables. These are too complex to perform using the existing HIS interfaces, which were originally designed for clinical business rather than clinical research. Moreover, these criteria sometimes require importing patient lists from external data sources not stored in the HIS databases. Certainly end-user computing (EUC) is effective in satisfying these demands, but in reality, EUC is too difficult for many clinical researchers to master because it requires them to understand the complicated composition of the data tables in the HIS database. Thus, we have developed a search system to meet these needs using user-friendly interfaces. Since the objective of a clinical study is to prove a relationship between a certain purported cause and the outcome, target patients must be selected based on several items of clinical information. Patient eligibility criteria for clinical studies are usually complex, consisting of multiple conditions combined with logical “AND”, “OR” and “NOT” operations as well as parentheses. It is a challenge to design user interfaces that can specify logical operations and parentheses among multiple search conditions. Our search system is designed to support set operations between the lists of search results as well as functions for loading and saving multiple lists, instead of logical operations and parentheses among search conditions. The system was developed using a middleware package for EUC, and was released in our institute. In this study, both the proposed search system and search interfaces for our institutional HIS were evaluated using application forms submitted to the Informatics Department requesting search and export of data stored in the HIS database. The requests were processed using both systems, and the results were recorded and analyzed for evaluation. Our search system fulfilled a significantly larger number of requests than the HIS interfaces (paired t-test, p <0.05).
机译：尽管医院信息系统（HIS）最近已得到更广泛的使用，但存储在HIS数据库中的数据并未在临床研究中得到充分利用。一个主要的原因是缺乏合适的工具来利用存储的数据进行临床研究。临床研究的患者资格标准通常包括多个条件，这些条件结合了跨多个数据表的逻辑运算。这些太复杂了，无法使用现有的HIS接口执行，这些接口最初是为临床业务而非临床研究而设计的。此外，这些标准有时需要从未存储在HIS数据库中的外部数据源导入患者列表。最终用户计算（EUC）当然可以满足这些需求，但是实际上，对于许多临床研究人员来说，EUC太难了，因为它要求他们了解HIS数据库中数据表的复杂组成。因此，我们开发了一种搜索系统，可以使用用户友好的界面来满足这些需求。由于临床研究的目的是证明特定原因与结果之间的关系，因此必须根据多项临床信息选择目标患者。临床研究的患者资格标准通常很复杂，包括多个条件以及逻辑“与”，“或”和“不”操作以及括号。设计可在多个搜索条件之间指定逻辑运算和括号的用户界面是一个挑战。我们的搜索系统旨在支持搜索结果列表之间的设置操作以及用于加载和保存多个列表的功能，而不是搜索条件之间的逻辑运算和括号。该系统是使用EUC的中间件软件包开发的，并已在我所发布。在这项研究中，我们使用向信息学部提交的申请表（要求对存储在HIS数据库中的数据进行搜索和导出）来评估我们机构HIS的提议搜索系统和搜索界面。使用这两个系统处理了请求，并对结果进行了记录和分析以进行评估。我们的搜索系统比HIS接口（配对t检验， p <0.05）满足的请求数量大得多。

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