Direct and Indirect Effects of Socioeconomic Status and Discrimination on Subjective Cognitive Decline: A Longitudinal Study of African American Women

Ronald L Simons, Mei Ling Ong, Steven R H Beach, Man-Kit Lei, Robert Philibert and Michelle M Mielke

The Journals of Gerontology: Series B, 2023, vol. 78, issue 5, 799-808

Abstract: ObjectivesThe present study builds on recent findings suggesting that the stress of institutional and interpersonal racism may contribute to African Americans’ elevated risk for dementia. We investigated the extent to which 2 consequences of racism—low socioeconomic status (SES) and discrimination—predict self-reported cognitive decline (SCD) 19 years later. Further, we examined potential mediating pathways that might link SES and discrimination to cognitive decline. Potential mediators included depression, accelerated biological aging, and onset of chronic illnesses.MethodsHypotheses were tested using a sample of 293 African American women. SCD was assessed using the Everyday Cognition Scale. Structural equation modeling was used to assess the effects of SES and racial discrimination, both measured in 2002, on SCD reported in 2021. Turning to the mediators, midlife depression was assessed in 2002, accelerated aging in 2019, and chronic illness in 2019. Age and prodrome depression were included as covariates.ResultsThere were direct effects of SES and discrimination on SCD. In addition, these 2 stressors showed a significant indirect effect on SCD through depression. Finally, there was evidence for a more complex pathway where SES and discrimination accelerate biological aging, with accelerated aging, in turn leading to chronic illness, which then predicted SCD.DiscussionResults of the present study add to a growing literature indicating that living in a racialized society is a central factor in explaining the high risk for dementia among Black Americans. Future research should continue to emphasize the various ways that exposure to racism over the life course effects cognition.

Keywords: Cognitive impairment; Health disparities; Racism; Stress pathways (search for similar items in EconPapers)
Date: 2023
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