Brief screening for mild cognitive impairment in elderly outpatient clinic: validation of the Korean version of the Montreal Cognitive Assessment

J Geriatr Psychiatry Neurol. 2008 Jun;21(2):104-10. doi: 10.1177/0891988708316855.


The Montreal Cognitive Assessment (MoCA) is a brief cognitive screening tool with high sensitivity for screening patients with mild cognitive impairment (MCI). The authors examined the validity and reliability of the Korean version of the MoCA (MoCA-K) in elderly outpatients. The MoCA-K, a Korean version of the Mini-Mental State Examination (MMSE), Clinical Dementia Rating (CDR) scale, and neuropsychological batteries were administered to 196 elderly persons (mild Alzheimer's disease [AD] = 44, MCI = 37, normal controls [NC] = 115). MoCA-K scores were highly correlated with those of MMSE and CDR. Using a cutoff score of 22/23, the MoCA-K had an excellent sensitivity of 89% and a good specificity of 84% for screening MCI. Internal consistency and test-retest reliability were good. The results obtained show that the MoCA-K is brief, reliable, and suitable for use as a screening tool to screen MCI patients in elderly outpatient clinic settings.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Alzheimer Disease / diagnosis
  • Alzheimer Disease / psychology
  • Cognition Disorders / diagnosis*
  • Cognition Disorders / psychology
  • Cross-Cultural Comparison*
  • Disease Progression
  • Educational Status
  • Female
  • Humans
  • Korea
  • Male
  • Mass Screening / statistics & numerical data*
  • Mental Status Schedule / statistics & numerical data
  • Middle Aged
  • Neuropsychological Tests / statistics & numerical data*
  • Outpatient Clinics, Hospital*
  • Psychometrics / statistics & numerical data
  • Reference Values
  • Reproducibility of Results
  • Risk Assessment
  • Translating