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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
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Published on: January 11, 2020

Mild cognitive impairment: an epidemiological perspective.

Karen Ritchie1

  • 1Institut National de la Santé et de la Recherche Médicale (INSERM), E361 Epidemiology of Nervous System Pathologies, La Colombière Hospital, Montpellier, France.

Dialogues in Clinical Neuroscience
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PubMed
Summary

Mild cognitive impairment (MCI) affects aging individuals, with prevalence rates varying widely. Key risk factors include age, education, and hypertension, suggesting potential intervention points.

Keywords:
cognitionetiologyincidencerelevancerisk

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Area of Science:

  • Neurology
  • Epidemiology
  • Gerontology

Background:

  • Mild cognitive impairment (MCI) involves cognitive deficits interacting with normal aging.
  • Epidemiological studies offer insights into MCI's heterogeneity, incidence, and prevalence in the general population.

Purpose of the Study:

  • To review epidemiological findings on mild cognitive impairment (MCI).
  • To identify prevalence, incidence, and risk factors for MCI.
  • To explore potential intervention strategies based on identified risk factors.

Main Methods:

  • Analysis of epidemiological studies on MCI in the general population.
  • Examination of case identification, sampling methods, and prevalence rate variations.
  • Application of regression models to identify MCI risk factors.

Main Results:

  • Prevalence rates for MCI range from 5% to 29% following definitional improvements.
  • Estimated incidence is 8-58 new cases per 1,000 person-years.
  • Identified risk factors include age, education, race, hypertension, infarcts, white matter lesions, depression, and APOE-ε4 allele.

Conclusions:

  • MCI prevalence and incidence vary significantly based on study methodology.
  • Age, education, hypertension, and genetic factors are key risk factors for MCI.
  • Further research is needed to explore a broader range of risk factors for therapeutic development.