Psychiatry Investig.
2021 Apr;18(4):324-331. 10.30773/pi.2020.0364.
Validation of the Korean Version of the Anosognosia Questionnaire for Dementia
- Byeon GH
1 - Kim WJ2
- Byun MS3
- Lee JH4
- Jeon SY5
- Ko K4
- Sung K2
- Han D2
- Joung H2
- Lee Y2
- Jung G2
- Lee HN2
- Yi D6
- Lee DY2,6,7
- KBASE Research Group
- Affiliations
-
- 1Department of Neuropsychiatry, Kangwon National University Hospital, Chuncheon, Republic of Korea
- 2Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
- 3Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- 4Department of Psychiatry, National Center for Mental Health, Seoul, Republic of Korea
- 5Department of Neuropsychiatry, Chungnam National University Hospital, Daejeon, Republic of Korea
- 6Institute of Human Behavioral Medicine, Medical Research Center, Seoul National University, Seoul, Republic of Korea
- 7Department of Psychiatry, Seoul National University of College of Medicine, Seoul, Republic of Korea
- KMID: 2515117
- DOI: http://doi.org/10.30773/pi.2020.0364
Abstract
Objective
Anosognosia is a common phenomenon in individuals with dementia. Anosognosia Questionnaire for dementia (AQ-D) is a well-known scale for evaluating anosognosia. This study aimed to establish a Korean version of the AQ-D (AQ-D-K) and to evaluate the reliability and validity of the AQ-D-K in patients with Alzheimer’s disease (AD) dementia.
Methods
We translated the original English version of AQ-D into Korean (AQ-D-K). Eighty-four subjects with very mild or mild AD dementia and their caregivers participated. Reliability of AQ-D-K was assessed by internal consistency and one-month test-retest reliability. Construct validity and concurrent validity were also evaluated.
Results
Internal consistencies of the AQ-D-K patient form and caregiver form were high (Cronbach alpha 0.95 and 0.93, respectively). The test-retest reliability of AQ-D-K measured by intra-class correlation coefficient was 0.84. Three factors were identified: 1) anosognosia of instrumental activity of daily living; 2) anosognosia basic activity of daily living; and 3) anosognosia of depression and disinhibition. AQ-D-K score was significantly correlated with the clinician-rated anosognosia rating scale (ARS), center for epidemiological studies-depression scale (CES-D) and state-trait anxiety inventory (STAI).
Conclusion
The findings suggest that the AQ-D-K is a reliable and valid scale for evaluating anosognosia for AD dementia patients using Korean language.
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