Year: 1972
Type: article
Study design: Observational Study
Abstract: As shown in radiographs of 3,764 children of European ancestry under 11 years of age, there are 55 dichotomous (present‐absent/absent‐present) ossification sequences for nine wrist region centers in boys and 48 such sequences for girls, with statistically significant sexual dimorphism in more than half of the “alternative” sequences. Substantial samples of Meso‐American origin (“Chicanos”) and largely‐African origin (“Blacks”) evidence additional dichotomous ossification sequences, with clear population differences, while Down's syndrome children (47,G +) show a major excess of the numerically rarer sequences of the wrist region.
Institution: University of Michigan
Language: English
Subfield: Archeology
Field: Arts and Humanities
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W2039638652
