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Summary
This summary is machine-generated.

Childhood cultural capital is key for lifelong brain health. Lifelong socioeconomic status (SES) trajectories show sex-specific brain health patterns, offering insights for targeted interventions.

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Area of Science:

  • Neuroscience
  • Public Health
  • Gerontology

Background:

  • Socioeconomic status (SES) in adulthood is linked to better late-life brain health.
  • The association between lifelong socioeconomic status (SES) trajectories and brain health remains unclear.

Purpose of the Study:

  • To investigate the relationship between childhood and adulthood socioeconomic status (SES) capital and late-life brain health, specifically cortical thickness (CT).
  • To examine how socioeconomic status (SES) trajectories across the lifespan influence brain structure in older adults.

Main Methods:

  • Utilized data from Kaiser Healthy Aging Diverse Life Experiences (KHANDLE) study participants (n=444) who underwent brain MRI.
  • Defined high/low financial, cultural, and social capital in childhood and adulthood, and analyzed socioeconomic status (SES) trajectories (consistently high, high-childhood/low-adulthood, low-childhood/high-adulthood, consistently low).
  • Employed linear regression models to assess associations between socioeconomic status (SES) capital and cortical thickness (CT), adjusting for relevant covariates and stratifying by sex for trajectories.

Main Results:

  • No significant differences in cortical thickness (CT) were found based on financial capital in childhood or adulthood.
  • High childhood cultural capital was associated with greater left hemisphere CT, while high adulthood cultural capital showed the opposite effect.
  • High adulthood social capital was linked to greater CT, particularly in the entorhinal cortex; childhood social capital showed a trend toward smaller left entorhinal CT.
  • Men with high financial capital at any life stage exhibited a trend toward greater left cortical thickness (CT) compared to men with consistently low financial capital.

Conclusions:

  • High childhood cultural capital emerges as a significant protective factor for brain health in later life.
  • Lifespan socioeconomic status (SES) trajectories reveal sex-specific patterns in brain structure, suggesting potential for targeted brain health interventions.