Can IQCODE detect poststroke dementia?

✍ Scribed by Wai Kwong Tang; Sandra S. M. Chan; Helen F. K. Chiu; Ka Sing Wong; Timothy C. Y. Kwok; Vincent Mok; Gabor S. Ungvari

• Book ID: 102232607
• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 62 KB
• Volume: 18
• Category: Article
• ISSN: 0885-6230
• DOI: 10.1002/gps.908

✦ Synopsis

Abstract

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.