Racial contrasts in hemoglobin levels and dietary patterns related to hematopoiesis in children: The Bogalusa heart study

T.A. Nicklas, G.C. Frank, L.S. Webber, S.A. Zinkgraf, J.L. Cresanta, L.C. Gatewood and G.S. Berenson

American Journal of Public Health, 1987, vol. 77, issue 10, 1320-1323

Abstract: Racial differences in hemoglobin (Hgb) levels were explored in two groups of children at different maturational stages, the pre-adolescent (10-year-olds; Whites n = 160, Blacks n = 56,) and the adolescent (15-year-olds; Whites n = 60, Blacks n = 44). Mean Hgb levels were higher for Whites than Blacks in both age groups. When all the dietary components (i.e., iron, zinc, copper, folacin, ascorbic acid and vitamins B12, E and B6) were considered as a group, they accounted for 8.4 per cent of the Hgb variance in 10-year-olds and 10.1 per cent of variance in 15-year-olds. However, even after controlling for the variations in dietary patterns of the adolescents and pre-adolescents, race still accounted for a notable proportion of Hgb variance in both age groups (9.1 per cent in 10-year-olds and 7.0 per cent in 15-year-olds). Within each race, gender accounted for a greater percentage of the Hgb variance in the adolescents than in the pre-adolescents. Our results indicate that in all likelihood racial differences in Hgb levels during childhood exist independent of racial differences in intake of specific 'blood building' nutrients and maturational changes.

Date: 1987
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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:1987:77:10:1320-1323_5

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