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Open Access Research Article

Factors Influencing the One- and Two-Year Growth Response in Children Treated with Growth Hormone: Analysis from an Observational Study

Judith Ross1*, Peter A Lee2, Robert Gut3 and John Germak3

Author Affiliations

1 Department of Pediatrics, Thomas Jefferson University, 1025 Walnut Street, Philadelphia, PA 19107, USA

2 Department of Pediatrics, The Milton S. Hershey Medical Center, Penn State College of Medicine, 500 University Drive, Suite 1100, Hershey, PA 17033, USA

3 Novo Nordisk Inc, 100 College Road West, Princeton, NJ 08540, USA

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International Journal of Pediatric Endocrinology 2010, 2010:494656  doi:10.1155/2010/494656

Published: 23 September 2010

Abstract

To assess gender-, pubertal-, age-related differences in change from baseline height standard deviation score (), 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, at year 1 was significantly greater for males versus females (), but no other gender differences were observed. For patients with GHD, was greater in prepubertal than in pubertal patients. Younger patients for both genders (<11 years for boys; <10 years for girls) showed a greater ( for GHD, MPHD, and ISS). Overall, positive were observed in all patients, with greater growth responses in younger prepubertal children, emphasizing the importance of starting GH treatment early.