Furukawa Michael F, Raghu T S, Shao Benjamin B M
School of Health Management and Policy, W. P. Carey School of Business, Arizona State University, Tempe 85287-4506, USA.
Inquiry. 2010 Summer;47(2):110-23. doi: 10.5034/inquiryjrnl_47.02.110.
This study examines the impact of electronic medical records (EMRs) on cost efficiency in hospital medical-surgical units. Using panel data on California hospitals from 1998 to 2007, we employed stochastic frontier analysis (SFA) to estimate the relationships between EMR implementation and the cost inefficiency of medical-surgical units. We categorized EMR implementation into three stages based on the level of sophistication. We also examined the effects of specific EMR systems on cost inefficiency. Our SFA models addressed potential bias from unobserved heterogeneity and heteroskedasticity. EMR Stages 1 and 2, nursing documentation, electronic medication administration records, and clinical decision support were associated with significantly higher inefficiency.
本研究考察了电子病历（EMR）对医院内科-外科病房成本效率的影响。利用1998年至2007年加利福尼亚州医院的面板数据，我们采用随机前沿分析（SFA）来估计电子病历实施与内科-外科病房成本无效率之间的关系。我们根据复杂程度将电子病历的实施分为三个阶段。我们还考察了特定电子病历系统对成本无效率的影响。我们的随机前沿分析模型解决了未观察到的异质性和异方差带来的潜在偏差。电子病历的第1阶段和第2阶段、护理记录、电子给药记录以及临床决策支持与显著更高的无效率相关。
