title: Abnormal growth in mitochondrial disease.
abstract: OBJECTIVE
  To review the height and weight of children with mitochondrial disease attending our supra-regional service.
  
  
  METHODS
  This was a retrospective audit of cross-sectional data. Height and weight measurements were available in 24 children and adolescents (median 7.86 years; range 1.76-20.5 years) who all had a confirmed diagnosis of mitochondrial disease. Values were converted to SD scores using UK reference data.
  
  
  RESULTS
  Patients with mitochondrial disease were short with an overall SD score of -1.97 (95% confidence intervals -2.72 to -1.23 SD). Patients were also thin with a relatively low BMI SDS of -1.07 (95% confidence intervals -1.69 to - 0.07 SD), which fell with advancing years (r =-0.7; p < 0.000).
  
  
  CONCLUSIONS
  Short stature and a progressive reduction in body mass index (BMI) are features of mitochondrial disease in childhood. The mechanisms underlying the abnormal growth in these patients need to be studied in more detail.
authors.affiliation: Department of Paediatrics, Royal Victoria Infirmary, Newcastle Upon Tyne, UK. Susanne.Wolny@nuth.nhs.uk
authors.forename: S
authors.initials: S
authors.lastname: Wolny
authors.forename: R
authors.initials: R
authors.lastname: McFarland
authors.forename: P
authors.initials: P
authors.lastname: Chinnery
authors.forename: T
authors.initials: T
authors.lastname: Cheetham
mesh_terms: D000293:Adolescent; D041923:Adolescent Development; D001827:Body Height; D001835:Body Weight; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D006801:Humans; D007223:Infant; D028361:Mitochondrial Diseases / Q000503:physiopathology*; D012189:Retrospective Studies; D055815:Young Adult