护理系统研究中的病例组合调整：以养老院居民结局为例。
Case mix adjustment in nursing systems research: the case of resident outcomes in nursing homes.
作者信息
Anderson R A, Su H F, Hsieh P C, Allred C A, Owensby S, Joiner-Rogers G
机构信息
Duke University School of Nursing, DUMC 3322, Durham, NC 27710, USA.
出版信息
Res Nurs Health. 1999 Aug;22(4):271-83. doi: 10.1002/(sici)1098-240x(199908)22:4<271::aid-nur2>3.0.co;2-6.
Case mix indicates, for a resident population, the degree of risk for developing favorable or unfavorable outcomes. In a study of 164 nursing homes, we explored two methods for combining resident assessment data into a case mix index (CMI). We compared a facility-level, composite CMI to a prevalence-based CMI comprised of 22 separate resident characteristics for their adequacy in explaining resident outcomes. The prevalence-based CMI consistently explained more variance in outcomes than the facility level, composite CMI. This study indicates a reasonable method for using administrative databases containing resident assessment data to adjust for the influence of case mix on nursing home resident outcomes.
病例组合对于常住人口而言，表明了出现有利或不利结果的风险程度。在一项对164家疗养院的研究中，我们探索了两种将居民评估数据合并为病例组合指数（CMI）的方法。我们将机构层面的综合CMI与基于患病率的CMI进行了比较，后者由22个独立的居民特征组成，以评估它们在解释居民结果方面的充分性。基于患病率的CMI在解释结果方面始终比机构层面的综合CMI解释更多的方差。本研究表明了一种合理的方法，可利用包含居民评估数据的行政数据库来调整病例组合对疗养院居民结果的影响。
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