NATIONAL STANDARS OF HEIGHT FOR TURNER SYNDROME (ST.) FROM 0 TO 20 YEARS

Abstract

Distance standars for height were constructed on a sample of 254 girls with T.S., with different cariotypes (47% XO, 53% other types) and treated with oestrogens during puberty from a mean age of 13,98 yr. (SD 2,0). Patients were measured at intervals ranging from 0,5 to 1,5 years during 1 to 11 years at the division of Endocrinology Htal. R. Gutierrez.Fiftieth centile was estimated by adjusting a 5 degree polynomial to the mean height obtained at each 0,5 year interval. Residual SD of the fitting was very low (0,8 cm). First derivative of the median distance curve showed that adult height (height velocity less than 0,2 cm/year) is attained at 18,2 yr. Mean adult height was 137,9 cm. with SD of 5,7 cm., very similar to the SD found in healthy argentine female population. Chi Square test for differences between distribution of raw date among selected centiles and theoretical expected distribution was not significant. The differences between adult height of local Turner girls and adult height of Turner girls from other population are similar to the population differences between normal girls.