%0 Journal Article %T Comparison of response to 2-years¡¯ growth hormone treatment in children with isolated growth hormone deficiency, born small for gestational age, idiopathic short stature, or multiple pituitary hormone deficiency: combined results from two large observational studies %A Peter A Lee %A Lars S£¿vendahl %A Isabelle Oliver %A Maith¨¦ Tauber %A Oliver Blankenstein %A Judith Ross %A Marta Snajderova %A Viatcheslav Rakov %A Birgitte T£¿nnes Pedersen %A Henrik Thybo Christesen %J International Journal of Pediatric Endocrinology %D 2012 %I BioMed Central %R 10.1186/1687-9856-2012-22 %X Analysis of auxologic data from two ongoing prospective observational studies, NordiNet£¿ International Outcomes Study (NordiNet£¿ IOS) and NovoNet£¿/American Norditropin£¿ Studies: Web-enabled Research (ANSWER) Program£¿.4,582 children aged <18£¿years were included: IGHD, n£¿=£¿3,298; SGA, n£¿=£¿678; ISS, n£¿=£¿334; and MPHD, n£¿=£¿272. After two years¡¯ GH treatment, change in height standard deviation score (SDS) was +1.03 in SGA and +0.84 in ISS vs. +0.97 in IGHD (p£¿=£¿0.047; p£¿<£¿0.001 vs. IGHD, respectively). Height gain was comparable between IGHD and MPHD. In pre-pubertal children vs. total population, height SDS change after two years was: IGHD, +1.24 vs. +0.97; SGA, +1.17 vs. +1.03; ISS, +1.04 vs. +0.84; and MPHD, +1.16 vs. +0.99 (all p£¿<£¿0.001).After two years¡¯ GH treatment, change in height SDS was greater in SGA and less in ISS, compared with IGHD; the discrepancy in responses may be due to the disease nature or confounders (i.e. age). Height SDS increase was greatest in pre-pubertal children, supporting early treatment initiation to optimize growth outcomes. %K Isolated growth hormone deficiency %K Small for gestational age %K Multiple pituitary hormone deficiency %K Idiopathic short stature %K Puberty %K Norditropin£¿ %U http://www.ijpeonline.com/content/2012/1/22/abstract