Percentile growth charts for head circumference in Punjabi infants.

Percentile growth charts for head circumference of Punjabi infants (male 86 and female 68) measured serially at monthly intervals during the first year of life are presented. Besides, constancy of sample size and strict adherence to time tolerance limit of +/- 3 days, on the day of monthly measurements other factors considered responsible for the natural smooth course of the percentile grids are highlighted. The presented data would enable easy detection of infants with abnormal course of head growth.