Background/Aims: To assess height standard deviation scores (HSDS) in patients with Turner syndrome (TS) by age at treatment initiation and varying durations of treatment with growth hormone (GH). Methods: GH treatment-naïve patients with TS from the American Norditropin Studies: Web-enabled Research (ANSWER) Program® Registry were analyzed at baseline, 4 months, and annually. Results: Three hundred and eighty-two patients with TS had a baseline mean (±SD) HSDS of -2.6 ± 0.9. Patients received short-term (1 year), long-term (<3 years), and extended GH treatment (≥3 years, mean = 4.54 years), resulting in 40.2% (n = 99/246), 60.5% (n = 69/114), and 62.3% (n = 86/138) of the patients achieving HSDS >-2. Patients starting GH at a younger age experienced better growth response, regardless of treatment duration. Change in HSDS from baseline (ΔHSDS) at 4 months correlated positively with ΔHSDS at 1 and 3 years, and ΔHSDS at 1 year with ΔHSDS at 3 years (p values from 0.0017 to<0.0001). Conclusions: Height gains in patients with TS during short-term treatment were found to be highly predictive of longer-term results. Continuation of GH treatment (≥3 years) resulted in 62.3% of the patients achieving an HSDS within the normal population range, indicating the clinical importance of early initiation and continuation of GH treatment in patients with TS.
All Science Journal Classification (ASJC) codes
- Pediatrics, Perinatology, and Child Health
- Endocrinology, Diabetes and Metabolism