Growth of head circumference of Malaysian infants and pre-school children.

126 Malaysian children, 65 boys and 61 girls from higher income families were followed-up regularly from birth to six years of age in the University Hospital, Kuala Lumpur. The study confirms the observations of previous studies that growth velocity of head circumference is most rapid during the first few months of infancy and then decreases so that by the fifth year of life the increment is minimal. It also confirms the fact that boys have bigger head circumferences than girls. The paper also presents the head circumference distance and velocity percentile charts which can be used to monitor the head circumference of Malaysian children.