Americans of European or African Descent
Study set: 70 females and 96 males of the Tennessee Data Bank
discriminant function score =
= (0.75367 * (dorso-volar diameter of the ulna in mm)) + (1.26974 * (transverse diameter in mm)) - 28.6077
Interpretation:
• If discriminant function score > 0, then male.
• If discriminant function score <= 0, then female.
• This is 91% accurate.
Japanese
Study set: 40 females and 48 males from Japan (Hanihara, 1958).
discriminant function score =
= (total length of the ulna in mm) + (6.50 * (transverse diameter of the shaft in mm)) + (2.88 * (maximum diameter of the capitulum in mm))
Interpretation:
• If discriminant function score > 371.25, then male.
• If discriminant function score <= 371.25, then female.
• This identified 90.49% of the bones correctly.
