Low blood pressure is a better predictor of cognitive deficits than the apolipoprotein e4 allele in the oldest old

Acta Neurol Scand. 2005 May;111(5):323-8. doi: 10.1111/j.1600-0404.2005.00397.x.

Abstract

Objective: To study the correlates of cognitive deficits in persons 80 years and older.

Materials and methods: Data from 271 individuals between 80 and 102 years of age, drawn from a central registrar (response rate 50%) were analyzed regarding e apolipoprotein E (Apo-E) polymorphism, blood pressure (BP), homocysteine, sex, age and education as predictors for low score on Mini Mental Status Examination (MMSE).

Results: Low systolic and diastolic BP were highly associated with low score on the MMSE, followed by age and Apo-E e4. No relationship was found between Apo-E allele groups and BP. Homocysteine, sex, and education were only of marginal importance.

Conclusions: Hypotension is an important factor for performance on the MMSE. To some extent, this was also true for having the Apo-E e4 allele. A combined effect on cognition for these two factors was not found.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Aging / pathology
  • Aging / psychology*
  • Apolipoprotein E4
  • Apolipoproteins E / analysis*
  • Cognition Disorders / physiopathology*
  • Cross-Sectional Studies
  • Female
  • Homocysteine / analysis
  • Humans
  • Hypotension*
  • Male
  • Mental Status Schedule
  • Predictive Value of Tests
  • Prognosis
  • Sex Factors

Substances

  • Apolipoprotein E4
  • Apolipoproteins E
  • Homocysteine