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Midlife blood pressure and dementia: the Honolulu-Asia aging study

L J Launer1, G W Ross, H Petrovitch

  • 1Epidemiology, Demography and Biometry Program, National Institute on Aging, National Institutes of Health, Gateway Building 3C-309, 7201 Wisconsin Avenue, Bethesda, MD 20892, USA. LaunerL@exmur.nia.nih.gov

Neurobiology of Aging
|May 5, 2000
PubMed

Insights

Mid-life high blood pressure significantly increases dementia risk in men not on medication. This includes Alzheimer's and vascular dementia, highlighting the importance of blood pressure management for brain health.

Area of Science:

  • Neurology
  • Cardiovascular Health
  • Epidemiology

Background:

  • Mid-life hypertension is a growing concern.
  • Understanding its long-term impact on cognitive decline is crucial.

Purpose of the Study:

  • To investigate the association between mid-life blood pressure and late-life dementia risk.
  • To differentiate risks for Alzheimer's disease and vascular dementia.
  • To examine the influence of anti-hypertensive medication use.

Main Methods:

  • Longitudinal cohort study of 3703 Japanese-American men (Honolulu Heart Program).
  • Assessment of systolic (SBP) and diastolic (DBP) blood pressure categories.
  • Analysis of dementia risk (odds ratio) adjusted for covariates, stratified by medication use.

Main Results:

  • In untreated men, elevated DBP (≥90 mmHg) increased dementia risk (OR 3.8-4.3).
  • High SBP (≥160 mmHg) also elevated dementia risk (OR 4.8).
  • No significant association found between blood pressure and dementia risk in treated men.

Conclusions:

  • Elevated mid-life blood pressure is a risk factor for late-life dementia in untreated men.
  • Findings apply to both Alzheimer's disease and vascular dementia.
  • Blood pressure management may be key in preventing dementia.

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