1. Case mix adjustment in nursing systems research: the case of resident outcomes in nursing homes.
- Author
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Anderson RA, Su HF, Hsieh PC, Allred CA, Owensby S, and Joiner-Rogers G
- Subjects
- Fractures, Bone, Humans, Mental Disorders, Nursing Homes statistics & numerical data, Quality Indicators, Health Care, Risk Factors, Texas, Nursing Administration Research methods, Nursing Care standards, Nursing Homes standards, Outcome Assessment, Health Care organization & administration, Risk Adjustment organization & administration
- Abstract
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.
- Published
- 1999
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