Routine analysis of dermatoglyphics and palmar creases in children with developmental disorders.

A dermatoglyphic and palmar crease analysis was carried out in 100 children aged six months to five years with psychomotor retardation (excluding Down's syndrome). When compared with 121 of the parents and a random group of 168 school-children, certain unusual features were found to be twice as common in the retarded children, demonstrating that these features may indicate an 'at risk' infant if found during routine examination of the newborn.