Sorensen H T, Sabroe S, Olsen J
Department of Internal Medicine V, Aarhus University Hospital, Denmark.
Int J Epidemiol. 1996 Apr;25(2):435-42. doi: 10.1093/ije/25.2.435.
As part of the development in information technology, increasing amounts of health care data are available for epidemiological research.
In this review, we discuss the following factors affecting the value of secondary data in research: 1) completeness of registration of individuals, 2) the accuracy and degree of completeness of the registered data, 3) the size of the data source, 4) the registration period, 5) data accessibility, availability and cost, 6) data format, and 7) possibilities of linkage with other data sources (record linkage).
The importance of these issues depends on the use of the data and on the problems they have to address. If the evaluation is satisfactory with respect to the above-mentioned factors relevant to the particular study, the data source could be a very cost-effective way of solving the research problem.
作为信息技术发展的一部分，越来越多的医疗保健数据可用于流行病学研究。
在本综述中，我们讨论以下影响研究中二手数据价值的因素：1）个体登记的完整性，2）登记数据的准确性和完整程度，3）数据源的规模，4）登记期，5）数据的可获取性、可用性和成本，6）数据格式，以及7）与其他数据源进行关联的可能性（记录关联）。
这些问题的重要性取决于数据的用途以及它们需要解决的问题。如果对于与特定研究相关的上述因素的评估令人满意，那么该数据源可能是解决研究问题的一种非常具有成本效益的方式。
