The dermatoglyphic analyses of 100 Japanese with Down's syndrome were made in comparison with those of 571 control individuals.
It appeared that these patients showed characteristic configurations of high frequencies of the characteristics such as the ulnar loop and radial loop on the fourth and fifth digits, high axial triradii (t''), the simian lines, the third interdigital loops, single flexion crease in the fifth digits and the hypothenar patterns.
There appears to be little difference in frequencies of these characteristic features in Down's syndrome between Japanese and Caucasian patients.