Prevalence of dementia and its subtypes in an elderly urban Korean population: Results from the Korean longitudinal study on health and aging (KLoSHA)

Jin Hyeong Jhoo, Ki Woong Kim, Yoonseok Huh, Seok Bum Lee, Joon Hyuk Park, Jung Jae Lee, Eun Ae Choi, Changsu Han, Il Han Choo, Jong Chul Youn, Dong Young Lee, Jong Inn Woo

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45 Citations (Scopus)

Abstract

Background/Aims: We estimated the prevalence of dementia and its major subtypes in an elderly urban Korean population. Methods: A study population of 1,118 Korean elders was randomly sampled from the residents aged 65 years or older living in Seongnam, Korea. Standardized face-to-face interviews, and neurological and physical examinations were conducted on 714 respondents. Dementia was diagnosed according to the DSM-IV diagnostic criteria, and its subtypes were determined according to the criteria of the NINCDS-ADRDA, the NINDS-AIREN, and the consensus guideline proposed by McKeith et al. [Neurology 1996;47:1113-1124]. Results: The estimated age- and gender-standardized prevalences were 6.3% for dementia (95% CI = 4.5-8.1), 4.8% for Alzheimer's disease (AD; 95% CI = 3.3-6.4), 1.0% for vascular dementia (VD; 95% CI = 0.3-1.8), and 0.4% for dementia with Lewy bodies (DLB; 95% CI = 0.0-0.9). The prevalence of AD consistently increased with age, whereas that of VD peaked at age 75-79 years and decreased thereafter. Of the dementia patients, 72.0% were in the very mild or mild stages of the disease. Conclusions: The prevalence of dementia in a typical urban area of Korea was estimated to be 6.3%, and AD was the most prevalent subtype. DLB was less prevalent than VD among these community-dwelling Korean elders.

Original languageEnglish
Pages (from-to)270-276
Number of pages7
JournalDementia and Geriatric Cognitive Disorders
Volume26
Issue number3
DOIs
Publication statusPublished - 2008 Oct 1

Keywords

  • Alzheimer's disease
  • Dementia of Lewy body
  • Dementia, prevalence
  • Korean population
  • Vascular dementia

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Geriatrics and Gerontology
  • Cognitive Neuroscience

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    Jhoo, J. H., Kim, K. W., Huh, Y., Lee, S. B., Park, J. H., Lee, J. J., Choi, E. A., Han, C., Choo, I. H., Youn, J. C., Lee, D. Y., & Woo, J. I. (2008). Prevalence of dementia and its subtypes in an elderly urban Korean population: Results from the Korean longitudinal study on health and aging (KLoSHA). Dementia and Geriatric Cognitive Disorders, 26(3), 270-276. https://doi.org/10.1159/000160960