The most important finding was the determination of body composition and hormonal measurement changes in puberty in boys. Oestradiol was the most potent determinant of bone mineral density among pubertal boys.

Parathyroid hormone may be a potent stimulator of skeletal dynamics in boys. Accelerated bone mineralization is reflected by high levels of serum PTH during puberty

The present study re-emphasized the important relationship between maternal and neonatal vitamin D status, rickets and calcium disturbances. Neonatal hypocalcaemia is a cause of early infantile seizures.