title: The relation of Graves' ophthalmopathy to circulating thyroid hormone status.
abstract: OBJECTIVE
  The risk factors and epidemiological data for Graves' ophthalmopathy with and without abnormal circulating thyroid levels were examined to determine the relation of thyroid dysfunction to ophthalmopathy.
  
  
  METHODS
  The authors retrospectively evaluated 482 patients seen with Graves' ophthalmopathy. Of these, 413 were classified as having abnormal levels of circulating thyroid hormone (ALTH) and 69 as having normal levels of circulating thyroid hormone (NLTH).
  
  
  RESULTS
  Patients in the NLTH group, compared to the ALTH group, were older on average (56 (SD 13.5) v 52 (15.4)) and had a higher age adjusted body mass index (26.1 (0.8) v 23.4 (0.3)). In addition, a higher percentage of NLTH patients had hypercholesterolaemia. Those in the ALTH group were more likely to be female (76% v 51%), to have a family history of thyroid problems, and to have had eye surgery.
  
  
  CONCLUSIONS
  NLTH and ALTH appear to differ from each other in terms of risk factors and epidemiological characteristics. Additionally, thyroid dysfunction seems to be associated with a more severe ophthalmopathy compared to the euthyroid state.
authors.affiliation: Keck School of Medicine, University of Southern California, CA, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Kim
authors.forename: L
authors.initials: L
authors.lastname: LaBree
authors.forename: L
authors.initials: L
authors.lastname: Levin
authors.forename: S E
authors.initials: SE
authors.lastname: Feldon
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D015992:Body Mass Index; D005260:Female; D006111:Graves Disease / Q000097:blood* / Q000209:etiology / Q000601:surgery; D006801:Humans; D006937:Hypercholesterolemia / Q000150:complications; D008297:Male; D008875:Middle Aged; D013508:Ophthalmologic Surgical Procedures; D012189:Retrospective Studies; D012307:Risk Factors; D012737:Sex Factors; D013963:Thyroid Hormones / Q000097:blood*
chemical_list: D013963:Thyroid Hormones