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Document Type

Article

Abstract

Anthropometric measurements and body proportions of a cross-sectional sample of 1613 children aged six to twelve years, of the three ethnic- groups of Egyptian Nubians (Kenouz, Arabs, Fededji) are reported by age, sex and ethnic group. The dimensions increase almost linearly with age Intergroup differences are therefore tested by comparing the slopes and intercepts of the coefficients of regression on age. There are some minor intergroup differences in bodily dimensions, but there are no significant differences in slopes or intercepts of trunk and limb dimensions other than bicristal breadth intercepts and bistyloid breadth of the wrist slopes in females. The major differences are in head and face measurements and their proportions. Kenouz boys have significantly broader heads and significantly narrower and higher faces than Fededji. Kenouz girls show the same trends. Fededji children have longer and narrower heads, as well as narrow faces. The slopes are significantly different for face height in boys and face breadth in girls; and for hand grip in both sexes. Compared with other groups, growth is delayed and, expectedly, continues for a longer duration as a result of suboptimal environmental conditions. However some of the differences between the three ethnic groups appear to be genetic.

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