Past-Year Racial Discrimination and Allostatic Load Among Indigenous Adults in Canada: The Role of Cultural Continuity
| Autor: | Cheryl L. Currie, Jennifer L. Copeland, Colleen M. Davies, Gerlinde A. S. Metz, Kat Chief Moon-Riley |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Canada CC = cultural continuity media_common.quotation_subject Culture CRP = C-reactive protein Racism Indigenous 03 medical and health sciences Young Adult 0302 clinical medicine AL = allostatic load Sex Factors Humans BMI = body mass index Young adult Association (psychology) Applied Psychology CAR = cortisol awakening response media_common DHEA-S = dehydroepiandrosterone sulfate Confounding cultural continuity Age Factors Original Articles Allostatic load 030227 psychiatry Psychiatry and Mental health income Enculturation Allostasis LOWESS = locally weighted scatterplot smoother ComputingMethodologies_DOCUMENTANDTEXTPROCESSING Indians North American Female Psychological resilience Psychology 030217 neurology & neurosurgery racial discrimination allostatic load Stress Psychological Demography |
| Zdroj: | Psychosomatic Medicine |
| ISSN: | 1534-7796 0033-3174 |
| Popis: | Supplemental digital content is available in the text. Objective This study aimed to examine the association between racial discrimination and allostatic load (AL) and whether this association was moderated by cultural continuity among Indigenous adults. Methods Data were collected from Indigenous adults attending university in a small city in western Canada between 2015 and 2017 (mean age = 27.8 years). The Experience of Discrimination Situation Score and the Vancouver Index Enculturation Subscale were used to assess racial discrimination and cultural continuity, respectively. AL was measured as a composite of seven biomarkers assessing neuroendocrine, cardiovascular, metabolic, and immune system function. Bias-corrected and accelerated bootstrapped linear regression models were used to examine associations adjusting for confounders (n = 104; 72.5% women). Results Across the full sample, racial discrimination was associated with a linear, dose-response increase in AL score after adjustment for confounders. Among adults with low cultural continuity, past-year discrimination was associated with increased AL and explained 22% (adjusted R2) of the variance in AL score. Taken together, the full model including age, sex, and income explained 38% of the variance in AL score in this subgroup. Among adults with high cultural continuity, racial discrimination was not associated with AL, whereas age remained significant and explained 13% of the variance in AL score. Conclusions Past-year racial discrimination was associated with early and more pronounced wear and tear on stress response systems among Indigenous adults relative to peers. Indigenous cultural continuity served as an important buffer that promoted biological resilience against the adverse effects of racial discrimination on physiologic regulation among Indigenous adults. |
| Databáze: | OpenAIRE |
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