FACTORS RELATED TO HOSPITAL LENGTH OF STAY

该项目使用了345家随机选择的医院和超过170，000家随机 从这些医院中挑选病人，检查导致 在美国医院的住院时间。 该项目包括描述性分析， 测试现有患者组合指数并构建新的患者组合指数 严重程度/合并症考虑，临床示踪剂状况检查， 检验与住院时间和结构有关的临床假设， 描述和预测患者日水平行为的随机模型 医院 考虑的因素包括必须控制的因素（例如，年龄 性别严重程度/合并症）和可管理或可影响的疾病 （利用率、入院时间、并发症、付款类型）。 因此，分析 结果将与政策直接相关，并对随后的政策有用 根据住院时间进行分析，以表明资源使用情况和 出现并发症

This project uses 345 randomly selected hospitals and over 170,000 randomly selected patients from these hospitals to examine factors contributing to length-of-stay in U.S. hospitals. The project includes descriptive analyses, testing of existing and construction of a new patient mix index based on severity/comorbidity considerations, examination of clinical tracer conditions, testing of clinical hypotheses related to length-of-stay and constructions, of stochastic models to describe and predict patient-day level behavior in the hospital. The factors considered include both those which must be controlled (e.g., age sex severity/comorbidity) and those which are manageable or influenceable (utilization, timing of admissions, complications, payment type). Thus analyses results will be both directly policy-relevant and useful for subsequent policy analyses based on length-of-stay as an indication of resource use and risk of developing complications.