title: Body mass index (BMI) in Turner Syndrome before and during growth hormone (GH) therapy.
abstract: OBJECTIVE
  To study whether body mass index (BMI) is different in girls with Turner syndrome (TS) compared to normal girls, and whether BMI in TS is affected by growth hormone (GH) treatment.
  
  
  METHODS
  A retrospective cross-sectional study.
  
  
  METHODS
  2468 girls with TS enrolled in the National Cooperative Group Study (NCGS), a collaborative surveillance study for assessing GH-treated children.
  
  
  METHODS
  BMI and BMI standard deviation score (BMI SDS) at baseline and during GH treatment were computed from height and weight data.
  
  
  RESULTS
  BMI in TS patients increases with age as expected. However, BMI SDS increased starting at about age 9 y. A similar pattern of increase in BMI SDS was observed after each year of GH treatment for up to 4 y, but GH treatment did not change the magnitude of increase. BMI and BMI SDS curves before and during GH treatment were essentially superimposable.
  
  
  CONCLUSIONS
  These findings suggest that mechanisms specific for TS are responsible for the age-related increase in BMI SDS. This increase was unaffected by GH treatment.
authors.affiliation: Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73190, USA. piers-blackett@ouhsc.edu
authors.forename: P R
authors.initials: PR
authors.lastname: Blackett
authors.forename: A C
authors.initials: AC
authors.lastname: Rundle
authors.forename: J
authors.initials: J
authors.lastname: Frane
authors.forename: S L
authors.initials: SL
authors.lastname: Blethen
mesh_terms: D000293:Adolescent; D000367:Age Factors; D015992:Body Mass Index; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D019382:Human Growth Hormone / Q000627:therapeutic use*; D006801:Humans; D009765:Obesity / Q000378:metabolism*; D012189:Retrospective Studies; D014424:Turner Syndrome / Q000188:drug therapy / Q000378:metabolism*
chemical_list: D019382:Human Growth Hormone