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Korean J Fam Med. 2019 Jan;40(1):16-21. English. Original Article. https://doi.org/10.4082/kjfm.17.0061
Park S , Kim DK , Myung W , Yoo JH , Shin SJ , Na DL , Kim SY , Lee JH , Kim SY , Han SH , Choi SH , Shin J .
Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Department of Psychiatry, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Department of Neurology, Seoul National University Bundang Hospital, Seoul, Korea.
Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Department of Neurology, Konkuk University School of Medicine, Seoul, Korea.
Department of Neurology, Inha University School of Medicine, Seoul, Korea.
Department of Family Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea. jyshin@kuh.ac.kr
Abstract

Background

Few studies have evaluated risk factors for behavioral and psychological symptoms of dementia at the initial assessment for Alzheimer disease in large patient samples. In this study, the factors influencing Alzheimer disease were examined using the Clinical Research of Dementia of South Korea data.

Methods

This cross-sectional study was conducted using data of 1,128 patients with Alzheimer disease. The behavioral and psychological symptoms of dementia were examined using the Korean version of the Neuropsychiatric Inventory. Demographic characteristics, health-related behavior, neuropsychological tests, comorbidities, blood test results, and caregiver characteristics were assessed. Median logistic regression analysis with adjustment for covariates was conducted.

Results

The behavioral and psychological symptoms of dementia were negatively associated with memory (P=0.022) and frontal/executive (P < 0.001) function in the Seoul Neuropsychological Screening Battery-dementia, Barthel Index for Activities of Daily Living (P < 0.001), Korean version of the Mini-Mental State Examination score (P=0.003), and caregiver age (P=0.005) after adjustment for confounding factors, and positively associated with the Seoul-Instrumental Activities of Daily Living score (P < 0.001), Clinical Dementia Rating Sum of Box (P < 0.001), Global Deterioration Scale score (P < 0.001), abnormality of free T4 level (P < 0.001), anemia (P < 0.001), and family history of stroke (P=0.001). Patients with female caregivers exhibited more severe behavioral and psychological symptoms of dementia than those with male caregivers.

Conclusion

Behavioral and psychological symptoms of dementia in Alzheimer disease patients were associated with various risk factors including the inability to live independently and Alzheimer disease severity. These findings suggest that prevention and treatment strategies for the behavioral and psychological symptoms of dementia should be comprehensive.

Copyright © 2019. Korean Association of Medical Journal Editors.