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Admixture and Social Status in Chile

Emil O. W. Kirkegaard


Published: 2022/06/01


We investigated how genetically measured ancestry relates to social status in Chile. Our study is based on a dataset of 1,805 subjects previously analyzed in another study. Ancestry was measured using genetic analysis based on microarray data. Overall we find that compared to European ancestry (44%), the Amerindian ancestries Mapuche (central Chile, 36%) and Aymara (northern, 17%) both predict lower social status (standardized betas = -1.77 and -0.97, p’s < .001). The amount of African ancestry was relatively minor in this sample (3%), but tentatively was associated with lower social status (beta = -2.15, p = .03). These differences held controlling for age, gender, and region of residence. Our analyses of the regional-level data (n=13) did not produce any findings. The sample size is probably too small and coarse-grained for this analysis to be viable. Key Words: Mapuche, Aymara, SES, Ancestry, Admixture

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