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Validity of the interRAI Acute Care based on test content: a multi-center study
Nathalie I H Wellens1, Mieke Deschodt, Steven Boonen
1Center for Health Services and Nursing Research, KU Leuven, Kapucijnenvoer 35 PB 7001, 3000 Leuven, Belgium.
Aging Clinical and Experimental Research
|April 25, 2012
Summary
The MDS inter-RAI Acute Care tool shows good content validity for hospitalized older adults, but clinical use reveals significant missing and invalid data. Improving data quality through training and software design is crucial for enhancing its validity in practice.
Area of Science:
- Geriatric Medicine
- Health Informatics
- Clinical Assessment Tools
Background:
- The MDS inter-RAI Acute Care is a comprehensive geriatric assessment tool.
- Its validity in daily clinical practice for hospitalized older persons needs examination.
Purpose of the Study:
- To examine the content validity of the MDS inter-RAI Acute Care tool in clinical practice.
- To assess item relevance and data quality during use with hospitalized older adults.
Main Methods:
- A cross-sectional, multicenter study involving 256 older persons in nine acute hospitals.
- Empirical testing of test content using frequency distributions of deficits, missing, and invalid data.
- Quantification of item relevance using content validity index (CVI) and modified kappa statistics (κ*).
Main Results:
- Most items (67%) had over 30% clinical deficits.
- Missing data varied significantly (5.3% to 29.3%) across assessment periods.
- 82 out of 98 items demonstrated excellent content validity (CVI ≥ 0.78) and relevance (κ* ≥ 0.75).
Conclusions:
- The MDS inter-RAI Acute Care item selection is appropriate for the target population.
- Substantial missing and invalid data were observed in clinical use.
- Training and software improvements are recommended to enhance data quality and validity.
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