J Korean Geriatr Soc.
2005 Sep;9(3):196-202.
Validity of the Korean Version of Informant Questionnaire on the Cognitive Decline in the Elderly(IQCODE)
- Affiliations
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- 1Department of Neuropsychiatry, College of Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea. dwlee@sanggyepaik.ac.kr
- 2Department of Neuropsychiatry, College of Medicine, Seoul National University, Boramae Hospital, Seoul, Korea.
- 3Department of Neuropsychiatry, College of Medicine, Hallym University, Kangdong Sacred Heart Hospital, Seoul, Korea.
- 4Department of Psychiatry, Gachon Medical School, Incheon, Korea.
- 5Department of Psychiatry, College of Medicine, Yonsei University, Seoul, Korea.
Abstract
- BACKGROUND
This study was conducted to prove the validity of the Korean version of the Informant Questionnaire on Cognitive Decline in the Elderly(IQCODE-K) as a screening test for Alzheimer's disease. METHOD: Informants of the elderly who visited the dementia clinic and the elderly living in community, were asked to complete IQCODE-K. Based on the final clinical diagnoses, performance of the the IQCODE-K in screening Alzheimer's disease was evaluated
RESULTS
The IQCODE is showed high internal consistency and test-retesr reliability. Optimal cut-off score of IQCODE-K was 3.6, and the sensitivity and specificity at that score were 0.90 and 0.79.
CONCLUSION
IQCODE-K is probably very useful to screen Alzheimer's disease. It may be also useful for the less well-educated people.
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