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Hospital quality indicators are not unidimensional: A reanalysis of Lieberthal and Comer.
- Author(s): Cefalu, Matthew S;
- Elliott, Marc N;
- Setodji, Claude M;
- Cleary, Paul D;
- Hays, Ron D
- et al.
Published Web Locationhttps://doi.org/10.1111/1475-6773.13056
ObjectiveTo evaluate the dimensionality of hospital quality indicators treated as unidimensional in a prior publication.
Data source/study designPooled cross-sectional 2010-2011 Hospital Compare data (10/1/10 and 10/1/11 archives) and the 2012 American Hospital Association Annual Survey.
Data extractionWe used 71 indicators of structure, process, and outcomes of hospital care in a principal component analysis of Ridit scores to evaluate the dimensionality of the indicators. We conducted an exploratory factor analysis using only the indicators in the Centers for Medicare & Medicaid Services' Hospital Value-Based Purchasing.
Principal findingsThere were four underlying dimensions of hospital quality: patient experience, mortality, and two clinical process dimensions.
ConclusionsHospital quality should be measured using a variety of indicators reflecting different dimensions of quality. Treating hospital quality as unidimensional leads to erroneous conclusions about the performance of different hospitals.
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