Extracting a statistical data matrix from electronic patient records

被引:3
作者
Gall, W [1 ]
Heinzl, H [1 ]
Sachs, P [1 ]
机构
[1] Univ Vienna, Gen Hosp, Dept Med Comp Sci, A-1090 Vienna, Austria
关键词
clinical database; retrieval operators; statistical matrix; data extraction;
D O I
10.1016/S0169-2607(00)00130-9
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
This paper describes the processing and transformation of medical data from a clinical database to a statistical data matrix. precise extraction and linking tools must be available for the desired data to be processed for statistical purposes. We show that flexible mechanisms are required for the different types of users, such as physicians and statisticians. In our retrieval tools we use logical queries based on operands and operators. The paper describes the method and appliance of the operators with which the desired matrix is created through a process of selection and linking, Examples with a Kaplan Meier function and time-dependent covariables demonstrate how our model is useful for different user groups. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:153 / 166
页数:14
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