Fitting polynomial functions to longitudinal height measurements of 65 thalassemic children.

Our Centers are following since 1980 a group of thalassemic children. They are six-monthly measured, in accordance with methods and techniques suggested by Tanner 65 males, all without pubertal signs, are considered. They have at least ten measurememts each. For each child, measurements of heigh attained were fitted with polynomial functions up to 4th degree