Holzemer W L, Reilly C A
Department of Mental Health, University of California, San Francisco, USA.
J Am Med Inform Assoc. 1995 May-Jun;2(3):183-90. doi: 10.1136/jamia.1995.95338871.
Variations research is one important strategy in the quality management movement designed to improve the quality of health care and to control costs. Information systems are being utilized in variations research to provide an array of potential variables, to provide measures of the variability inherent in these variables, and to assist with the study of the linkages of patient and provider characteristics with interventions and outcomes. This article presents a systems model of inputs, processes, and outcomes with explication of factors related to client, provider, and setting as a heuristic strategy for variable specification. The implications of variable specification, the design and measurement of variability, and the key issue of control in variations research are linked with a discussion of the implications for medical informatics.
变异研究是质量管理运动中的一项重要策略，旨在提高医疗保健质量并控制成本。信息系统正被用于变异研究，以提供一系列潜在变量，测量这些变量中固有的变异性，并协助研究患者和提供者特征与干预措施及结果之间的联系。本文提出了一个输入、过程和结果的系统模型，并阐述了与客户、提供者和环境相关的因素，作为变量规范的启发式策略。变量规范的意义、变异性的设计和测量以及变异研究中的控制关键问题与对医学信息学的意义讨论相关联。
