Profile of growth hormone deficiency in Bombay.

Of the 430 children referred for the evaluation of short stature 100 (23%) were confirmed to have growth hormone deficiency. The male to female ratio was 1.94:1. Less than 10% belonged to the lower socio-economic group. Most of the cases (73%) presented between the ages of 6-15 years though growth failure was usually recognised earlier. Minimum of two stimulation tests were performed in each case. Seventy five GH deficient children had idiopathic GHD (IGHD) and 31% of these were familial. Fourteen had organic causes and 11 had GH resistance. Of 75 with IGHD, 18 had abnormal deliveries, breech or birth asphyxia. Multitropic pituitary hormone deficiency (MPHD) was found in 9/75 cases of idiopathic GHD and in three of the organic group. The height age was much more retarded than chronologic age in the GH resistant group (p less than 0.05) and the HA/BA ratio was also lowest in this group (p less than 0.001). Growth velocity was less than 4 cm/year in all the GHD children but was lowest in those with MPHD. The interesting feature of this study is the marked predominance of the familial cases 31% and a high incidence of growth hormone resistant cases (11%).