Journal
JOURNAL OF RACIAL AND ETHNIC HEALTH DISPARITIES
Volume 8, Issue 2, Pages 339-349Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s40615-020-00786-8
Keywords
Racial discrimination; Inflammation; African American women; Social determinants of illness
Categories
Funding
- National Institute on Aging [R01 AG055393]
- National Heart, Lung, Blood Institute [R01 HL118045]
- National Institute on Child Health and Human Development [R01 HD080749]
- National Institute on Drug Abuse [R21 DA034457]
- National Institute of Mental Health [R01 MH62699, R01 MH62666]
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This study tests the weathering hypothesis by using chronic inflammation as an indicator of biological weathering, finding that persistent exposure to racial discrimination predicts elevated inflammation and diagnosed chronic illness. The results support the idea that race, like SES, is a fundamental cause of health inequalities.
It is widely accepted that socioeconomic status (SES) is a fundamental cause of health inequality. There is evidence, however, that race is also a fundamental cause of disparities in health. Based on this idea, the weathering hypothesis developed by Geronimus and her colleagues views the elevated rates of illness and disability seen among Black Americans as a physiological response to the structural barriers, daily slights, and other threats to identity that comprise the Black experience. The current study tests the weathering hypothesis using chronic inflammation as an indicator of biological weathering. Specifically, we examine the extent to which persistent exposure to racial discrimination predicts elevated inflammation and, in turn, diagnosed chronic illness, after taking into account SES and several control variables. This mediation model was tested using zero-inflated Poisson path modeling with five waves of data collected from 391 African American women participating in the Family and Community Health Study (FACHS). A 13-item index was used to assess exposure to racial discrimination across 8 years. ELISA blood assays of seven cytokines central to the inflammatory response were used to construct an inflammatory index. Respondents reported their diagnosed chronic diseases. Consonant with the weathering hypothesis, persistent exposure to discrimination predicted inflammation which, in turn, predicted number of chronic diseases. This indirect effect was statistically significant. SES predicted having a chronic disease and the various controls showed no effect. The findings support the idea that race, like SES, is a fundamental cause of health inequalities.
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