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Radiographic digit ratios (2D:4D) of Afro-Caribbean children: Comparisons with published data from white children
R Trivers1, A Jacobson2, J T Manning3
1Biosocial Research Foundation, Southfield, St Elizabeth, Jamaica.
Background:
Digit ratio (2D:4D) from soft-tissue measurements of fingers from children and adults from Black and White ethnic groups show sex differences (males
Aim:
To consider sex and ethnic differences in radiographic 2D:4D of children of Afro-Caribbean descent and to compare these means with "standards" from White children.
Subjects And Methods:
A cross-sectional design with samples from Afro-Caribbean children aged 6 to 11 years compared to published radiographic measurements for White children in the Fels Longitudinal Study.
Results:
Radiographic 2D:4D showed ethnic differences such that Afro-Caribbeans
Conclusion:
In Afro-Caribbean children, mean radiographic 2D:4D was lower than that of White children and sexual dimorphism of 2D:4D (boys
