Related Experiment Video
Updated: Jan 18, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Factors influencing the one- and two-year growth response in children treated with growth hormone: analysis from an
Judith Ross1, Peter A Lee, Robert Gut
1Department of Pediatrics, Thomas Jefferson University, 1025 Walnut Street, Philadelphia, PA 19107, USA.
Insights
Growth hormone (GH) treatment shows positive height standard deviation score (ΔHSDS) changes in pediatric patients. Younger, prepubertal children experienced greater growth, highlighting the importance of early intervention for conditions like GHD.
Area of Science:
- Pediatric Endocrinology
- Growth Hormone Therapy
- Clinical Research
Background:
- Understanding factors influencing growth in pediatric endocrine disorders is crucial for effective treatment.
- Growth hormone deficiency (GHD) and other conditions affect linear growth in children.
- Previous studies suggest age and pubertal status may impact growth response to GH therapy.
Purpose of the Study:
- To evaluate gender, pubertal, and age-related differences in height standard deviation score changes (ΔHSDS) in pediatric patients.
- To analyze growth responses in children with various growth-related conditions receiving GH therapy.
- To determine optimal timing for initiating GH treatment based on patient characteristics.
Main Methods:
- Analysis of data from 5,797 GH-naïve pediatric patients (<18 years) from the ANSWER Program registry.
- Inclusion criteria: GHD, multiple pituitary hormone deficiency (MPHD), Turner syndrome (TS), small for gestational age (SGA), Noonan syndrome (NS), and idiopathic short stature (ISS).
- Assessment of ΔHSDS at year 1, stratified by gender, pubertal status, and age groups.
Main Results:
- Overall positive ΔHSDS observed across all patient groups.
- SGA males showed significantly greater ΔHSDS than females at year 1 (P = .016).
- Prepubertal patients with GHD exhibited greater ΔHSDS than pubertal patients.
- Younger children (boys <11 years, girls <10 years) demonstrated greater ΔHSDS across GHD, MPHD, and ISS cohorts (P < .05).
Conclusions:
- Early initiation of GH treatment is crucial for maximizing growth response in pediatric patients.
- Younger, prepubertal children generally show enhanced growth responses to GH therapy.
- Age and pubertal status are significant factors influencing treatment outcomes in various pediatric growth disorders.
Abstract:
To assess gender-, pubertal-, age-related differences in change from baseline height standard deviation score (ΔHSDS), data from 5,797 growth hormone (GH) naïve pediatric patients (<18 years) with growth hormone deficiency (GHD), multiple pituitary hormone deficiency (MPHD), Turner syndrome (TS), small for gestational age (SGA), Noonan syndrome (NS), and idiopathic short stature (ISS) were obtained from the ANSWER (American Norditropin Studies: Web-enabled Research) Program registry. For patients with SGA, ΔHSDS at year 1 was significantly greater for males versus females (P = .016), but no other gender differences were observed. For patients with GHD, ΔHSDS was greater in prepubertal than in pubertal patients. Younger patients for both genders (<11 years for boys; <10 years for girls) showed a greater ΔHSDS (P < .05 for GHD, MPHD, and ISS). Overall, positive ΔHSDSs were observed in all patients, with greater growth responses in younger prepubertal children, emphasizing the importance of starting GH treatment early.
Related Concept Videos
Exponential Equations for Modeling Growth
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Nature and Nurture
Factors Affecting Drug Response: Overview
Signs of Puberty
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...

