Blumenstein B A
Fred Hutchinson Cancer Research Center, Seattle, WA 98104.
Stat Med. 1993 Sep 15;12(17):1535-42. doi: 10.1002/sim.4780121702.
Although diminished use of double keying for the verification of keyed medical research data has occurred, there are no published data that demonstrate the existence of equivalent or better replacement. The simple replacement of double keying with visual comparison is not recommended because visual comparison is too susceptible to the transient energy levels of the individual who makes the comparison. Some system design innovations applicable in specific situations allow elimination of verification by providing nearly equivalent or possibly even superior data quality assurance opportunities. These alternatives include designs where one replaces the transcription to data forms by direct keying from original source documents coupled with extensive quality reviews, and designs with direct data base input of data subjected to intense automated consistency checking and immediate analytic use. In both cases, the absence of keyed data verification places a greater burden for data quality assurance on other subsystems, such as quality review, and ultimately the analytic process. Data entry systems based on new technologies, such as tablet computers, electronic image processing, and voice input, will require similar considerations for assuring data quality.
尽管用于核对键入的医学研究数据的重复键入法的使用有所减少，但尚无已发表的数据表明存在等效或更好的替代方法。不建议简单地用视觉比对来替代重复键入，因为视觉比对太容易受到进行比对的个体的瞬时能量水平的影响。一些适用于特定情况的系统设计创新通过提供近乎等效甚至可能更优的数据质量保证机会，使得核对得以消除。这些替代方法包括：一种设计是通过直接从原始源文档键入来取代转录到数据表单，并进行广泛的质量审查；另一种设计是对数据进行直接数据库输入，并进行严格的自动一致性检查和立即进行分析使用。在这两种情况下，缺少键入数据核对会给其他子系统（如质量审查）以及最终的分析过程带来更大的数据质量保证负担。基于新技术（如平板电脑、电子图像处理和语音输入）的数据录入系统，在确保数据质量方面也需要类似的考虑。
