Body proportions improved in GH-treated children with Z-score BMI of 8, 8 ± 4, 16 in the nontreatment group and 4, 7 ± 4, 70 in the GH treatment group (P=0, 002), especially Z-score BMI improved better in the treatment group before 1 year of age compared with the group treatment after 1 year of age.