This is not the most recent version of the article. View current version (3 JUL 2014)
Diagnostic Test Accuracy Protocol
IQCODE for the diagnosis of Alzheimer’s disease dementia and other dementias within a general practice (primary care) setting
Editorial Group: Cochrane Dementia and Cognitive Improvement Group
Published Online: 14 OCT 2013
Assessed as up-to-date: 16 JAN 2013
Copyright © 2013 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.
How to Cite
Quinn TJ, Fearon P, Young C, Noel-Storr AH, McShane R, Stott DJ. IQCODE for the diagnosis of Alzheimer’s disease dementia and other dementias within a general practice (primary care) setting (Protocol). Cochrane Database of Systematic Reviews 2013, Issue 10. Art. No.: CD010771. DOI: 10.1002/14651858.CD010771.
- Publication Status: New
- Published Online: 14 OCT 2013
This is not the most recent version of the article. View current version (03 JUL 2014)
This is the protocol for a review and there is no abstract. The objectives are as follows:
To determine the diagnostic accuracy of the informant-based questionnaire IQCODE, in detection of all-cause (undifferentiated) dementia in adults presenting to primary-care services.
Where data are available we will describe the following:
- The diagnostic accuracy of IQCODE at various prespecified thresholds. We recognise that various thresholds or cut-off scores have been used to define IQCODE screen-positive states. We will describe the properties of IQCODE for the following cut-off scores (rounded where necessary): 3.6; 3.5; 3.4; 3.3. These thresholds have been chosen to represent the range of cut-offs that are commonly used in practice and research; we have been inclusive in our choice of cut-off to maximise available data for review.
- Accuracy of IQCODE for diagnosis of the commonest specific dementia subtype - Alzheimer’s dementia.
- Effects of heterogeneity on the reported diagnostic accuracy of IQCODE. Potential sources of heterogeneity that we will explore include: age of cohort; case mix of cohort; reason for primary-care consultation; technical features of IQCODE; method of dementia diagnosis.