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Related Experiment Videos

Primary care screen for early dementia.

Ellen Grober1, Charles Hall, Richard B Lipton

  • 1Department of Neurology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York 10467, USA. egrober@montefiore.org

Journal of the American Geriatrics Society
|January 9, 2008
PubMed
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The Alzheimer's Disease Screen for Primary Care (ADS-PC) demonstrates superior sensitivity in detecting early dementia compared to the Mini-Mental State Examination (MMSE). This new screening tool also shows improved specificity, reducing misclassification rates in diverse patient groups.

Area of Science:

  • Geriatric Medicine
  • Neurology
  • Primary Care Diagnostics

Background:

  • Early detection of dementia is crucial for timely intervention and management.
  • Existing screening tools like the Mini-Mental State Examination (MMSE) may have limitations in sensitivity and specificity, particularly in diverse populations.
  • The Alzheimer's Disease Screen for Primary Care (ADS-PC) was developed as a potential improvement for early dementia identification.

Purpose of the Study:

  • To compare the diagnostic sensitivity and specificity of the ADS-PC against the MMSE for early dementia detection.
  • To assess the misclassification rates of both screening tools in minority patients and those with limited education.

Main Methods:

  • A cross-sectional validation study was conducted in an urban geriatric primary care setting.

Related Experiment Videos

  • 316 African-American and Caucasian patients, including 55 with early dementia (CDR 0.5), were evaluated.
  • The ADS-PC, a two-stage screening strategy, was compared with the MMSE using McNemar tests and receiver operating characteristic (ROC) curves.

    • Main Results:

    • When specificities were equated (0.90), the ADS-PC (0.75) showed significantly higher sensitivity than the MMSE (0.56).
    • The ADS-PC demonstrated significantly higher specificity (0.95) than the MMSE (0.73) when sensitivities were equated.
    • These performance advantages for the ADS-PC were observed across racial groups and individuals with higher education levels.

    Conclusions:

    • The ADS-PC significantly outperforms the MMSE in identifying early dementia within a diverse primary care population.
    • The ADS-PC offers improved sensitivity and specificity, leading to more accurate dementia case identification and reduced misclassification.
    • This study supports the ADS-PC as a valuable tool for early dementia screening in primary care settings.