Title |
Selecting optimal screening items for delirium: an application of item response theory
|
---|---|
Published in |
BMC Medical Research Methodology, January 2013
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DOI | 10.1186/1471-2288-13-8 |
Pubmed ID | |
Authors |
Frances M Yang, Richard N Jones, Sharon K Inouye, Douglas Tommet, Paul K Crane, James L Rudolph, Long H Ngo, Edward R Marcantonio |
Abstract |
Delirium (acute confusion), is a common, morbid, and costly complication of acute illness in older adults. Yet, researchers and clinicians lack short, efficient, and sensitive case identification tools for delirium. Though the Confusion Assessment Method (CAM) is the most widely used algorithm for delirium, the existing assessments that operationalize the CAM algorithm may be too long or complicated for routine clinical use. Item response theory (IRT) models help facilitate the development of short screening tools for use in clinical applications or research studies. This study utilizes IRT to identify a reduced set of optimally performing screening indicators for the four CAM features of delirium. |
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United Kingdom | 2 | 100% |
Demographic breakdown
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 2 | 4% |
Unknown | 45 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 9 | 19% |
Student > Doctoral Student | 8 | 17% |
Researcher | 7 | 15% |
Professor | 3 | 6% |
Student > Postgraduate | 3 | 6% |
Other | 10 | 21% |
Unknown | 7 | 15% |
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Medicine and Dentistry | 18 | 38% |
Nursing and Health Professions | 6 | 13% |
Social Sciences | 3 | 6% |
Psychology | 3 | 6% |
Business, Management and Accounting | 2 | 4% |
Other | 5 | 11% |
Unknown | 10 | 21% |