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pubmed:abstractText |
Variance reduction is sometimes considered as a goal of clinical quality improvement. Variance among physicians, hospitals, or health plans has been evaluated as the proportion of total variance (or intraclass correlation, ICC) in a quality measure; low ICCs have been interpreted to indicate low potential for quality improvement at that level. However, the absolute amount of variation, expressed in clinically meaningful units, is less frequently reported. Moreover, changes in variance components have not been studied as quality improves.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Multicenter Study,
Research Support, N.I.H., Extramural
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