Calculating risk and outcome: The Veterans Affairs database
Calculating risk and outcome: The Veterans Affairs database
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DOI：
10.1016/0003-4975(96)00821-1
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发表时间：
1996-11-01
影响因子：
4.6
通讯作者：
Hammermeister, KE
中科院分区：
文献类型：
--
作者：
Grover, FL;Shroyer, ALW;Hammermeister, KE
退伍军人事务部的数据收集和分析，以获得观察/预期的心脏手术患者的死亡率比所使用的方法进行审查。退伍军人事务部使用单变量和多变量分析，以制定风险比的个别危险因素进行了说明。它的经验，跟踪观察/预期的死亡率和发病率与心脏手术和住院时间进行审查。报告了退伍军人事务部对医院手术量与观察/预期比率之间关系的研究结果。讨论了提高数据库模型预测能力的可行目标和影响模型精度的局限性。
The methodology used by the Department of Veterans Affairs for data collection and analysis to derive observed/expected mortality ratios in cardiac surgical patients is reviewed. The Department of Veterans Affairs' use of univariate and multivariate analysis to develop risk ratios for individual risk factors is described. Its experience with tracking observed/expected mortality and morbidity associated with cardiac surgery and length of hospital stays is reviewed. Results of the Department of Veterans Affairs study of the relationship between hospital surgical volume and observed/expected ratios are reported. Feasible goals for the improvement of the predictive capability of database models and the limitations affecting model accuracy are discussed.