Two thousand four hundred and forty-four Brazilian school children were classified as Light, Medium and Dark according to a subjective jedgment of the proportion of Negro admixture, and studied for weight, height, span and upper-segment/lower-segment (US/LS) ratio. The mean US/LS ratio decreases significantly as the proportion of Negro admixture increases giving an intermediate value for those children belonging to the Medium group for race.
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Oliveira et al. (1977) studied this question.
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