Professional Reference articles are written by UK doctors and are based on research evidence, UK and European Guidelines. They are designed for health professionals to use, so you may find the language more technical than the condition leaflets.
See also separate Screening for Dementia article.
This informant questionnaire can be very useful in the screening and evaluation of dementia.[1, 2] When combined with cognitive tests such as the Mini Mental State Examination (MMSE), an useful overview is obtained and hence sensitivity and specificity as a screening test can be improvedValidity within primary and secondary care settings has been tested.[4, 5]A shortened 16-question form of the IQCODE has also been validated and is shown here.
Each question is scored from 1 (much improved) to 5 (much worse). For the Short IQCODE, a cut-off point (average score) of 3.31/3.38 achieves a balance of sensitivity and specificity.
Short Form of the Informant Questionnaire on Cognitive Decline in the Elderly (Short IQCODE) by A. F. Jorm, Centre for Mental Health Research, The Australian National University, Canberra, Australia.
Note: as used in published studies, the IQCODE was preceded by questions to the informant on the subject's sociodemographic characteristics and physical health.
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