Fu L S, Huff S, Bouhaddou O, Bray B, Warner H
Department of Medical Informatics, University of Utah, School of Medicine, Salt Lake City.
Proc Annu Symp Comput Appl Med Care. 1991:373-7.
Merging data from the Salt Lake VA hospital database and the LDS hospital HELP system into a UMLS sponsored unified patient database has demonstrated that distribution of variables within a disease is hospital independent. Although disease prevalence is clearly not the same among hospitals, analysis of data within a disease group across hospitals can be done using such a merged database. This unified patient database would allow study of unusual diseases not possible using data from a single institution.
将盐湖城退伍军人事务部医院数据库和LDS医院HELP系统的数据合并到一个由美国国立医学图书馆（UMLS）赞助的统一患者数据库中，这表明疾病内变量的分布与医院无关。虽然不同医院之间的疾病患病率显然不同，但可以使用这样一个合并后的数据库对不同医院疾病组内的数据进行分析。这个统一的患者数据库将使得对使用单一机构数据无法开展的罕见疾病研究成为可能。
