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Effect size for the main cognitive function determinants in a large cross-sectional study.

T Mura1,2,3, H Amieva4,5, M Goldberg6,7

  • 1Population-based Epidemiological Cohorts Unit, UMS 011 Inserm-UVSQ, Villejuif, France. t-mura@chu-montpellier.fr.

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Summary
This summary is machine-generated.

Socio-demographic factors like age, gender, and education significantly influence cognitive function in adults aged 45-75. Lifestyle and health factors had minimal impact on cognitive performance in this large cohort study.

Keywords:
cardiovascular factorscognitive functionseffect sizelifestyle factorspsychological factorssocio-demographic factors

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Area of Science:

  • Neuroscience
  • Gerontology
  • Psychology

Background:

  • Cognitive function naturally declines with age, but determinants vary across the lifespan.
  • Understanding factors influencing cognition is crucial for public health and personalized interventions.

Purpose of the Study:

  • To quantify the effect sizes of various determinants on cognitive function in middle and early old age.
  • To identify key factors associated with cognitive performance variations in adults aged 45-75.

Main Methods:

  • 11,711 French adults (45-75 years) from the CONSTANCES cohort were assessed.
  • Cognitive functions measured using FCSRT, verbal fluency, DSST, and TMT (A & B).
  • Effect sizes of socio-demographic, lifestyle, cardiovascular, and psychological variables were calculated using omega-squared (ω²).

Main Results:

  • Socio-demographic variables (age, gender, education) explained the largest proportion of variance in cognitive performance.
  • Age was a significant determinant, particularly for DSST (ω² = 7.5%).
  • Lifestyle, cardiovascular, and psychological factors had minimal impact (all ω² < 0.8%).

Conclusions:

  • Socio-demographic factors are the primary drivers of cognitive performance variation in adults aged 45-75.
  • Cognitive health in midlife and early old age is strongly linked to age, gender, and education.
  • Other factors like lifestyle and health status play a minor role in cognitive performance within this age range.