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Development and Concurrent Validity of the Short-Form CogDrisk Dementia Risk Assessment Tool.

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The CogDrisk Short Form (CogDrisk-SF) effectively assesses dementia risk factors, offering a valid alternative to the original CogDrisk for time-limited situations. This tool aids in dementia risk assessment for both individuals and public health policy.

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Area of Science:

  • Neurology
  • Public Health
  • Gerontology

Background:

  • Evidence-based dementia risk assessment is crucial for targeted risk reduction strategies.
  • Existing tools may be time-consuming, limiting their widespread application.
  • The CogDrisk Short Form (CogDrisk-SF) was developed to address this need for efficiency.

Purpose of the Study:

  • To evaluate the concurrent validity of the CogDrisk Short Form (CogDrisk-SF) against the original CogDrisk.
  • To determine the reliability and agreement of the CogDrisk-SF in assessing dementia risk factors.

Main Methods:

  • An online survey was administered to 647 community-dwelling adults using a repeated-measures, counterbalanced design.
  • Participants completed both the CogDrisk and the CogDrisk-SF.
  • Statistical analysis included calculating intraclass correlation and percentage agreement for individual risk factors.

Main Results:

  • The CogDrisk-SF demonstrated high concurrent validity with the original CogDrisk, with an intraclass correlation of 0.92.
  • Mean scores were comparable: CogDrisk-SF (9.7 ± 5.3) and CogDrisk (9.9 ± 5.5).
  • High agreement was observed for individual risk factors like insomnia (87%) and depression (89%), with most items exceeding 90% agreement.

Conclusions:

  • The CogDrisk Short Form (CogDrisk-SF) is a valid and reliable tool for dementia risk assessment.
  • Its efficiency makes it suitable for research and clinical settings with limited time and resources.
  • The CogDrisk-SF can support individual risk assessment and inform public health interventions for dementia prevention.