Intra-uterine growth in infants of diabetic mothers.

The birth weight, length, head circumference and body proportions of infants born to women with well-controlled diabetes were compared with those of infants born to poorly controlled diabetics. The latter infants were significantly heavier, with a greater weight/length ratio and a smaller head circumference/weight ratio, while their length, and head circumference/length ratio were appropriate for age. The size and body proportions of infants born to well-controlled diabetics were normal. Hairiness of the pinna was observed in infants born to both well- and poorly controlled diabetics, and may prove to be a useful clinical sign in identifying the infant of a diabetic mother.