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Can IQCODE detect poststroke dementia?
Author(s) -
Tang Wai Kwong,
Chan Sandra S. M.,
Chiu Helen F. K.,
Wong Ka Sing,
Kwok Timothy C. Y.,
Mok Vincent,
Ungvari Gabor S.
Publication year - 2003
Publication title -
international journal of geriatric psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 129
eISSN - 1099-1166
pISSN - 0885-6230
DOI - 10.1002/gps.908
Subject(s) - dementia , medicine , stroke (engine) , mechanical engineering , disease , engineering
Background Little is known about the performance of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) in the screening of post‐stroke dementia (PSDE). Methods At 3 months after the index stroke, a research assistant administered the IQCODE to relatives of 189 Chinese patients with acute stroke who were consecutively admitted to a general hospital. A psychiatrist, who was blind to the IQCODE scores, interviewed all 189 patients and made DSM‐IV diagnosis of dementia, which served as the benchmark for judging the performance of IQCODE in screening PSDE. Results The optimal cut‐off point of IQCODE was 3.40. The sensitivity, specificity, and positive and negative predictive values of IQCODE, and the area under the receiver operating characteristic curve, were 88%, 75%, 33%, 98%, and 0.88, respectively. Conclusions When used as a sole instrument, IQCODE does not appear to be useful in screening PSDE in Chinese elderly. Copyright © 2003 John Wiley & Sons, Ltd.