title: Implication of the age in the clinical spectrum of giant cell arteritis.
abstract: OBJECTIVE
  To assess the potential influence of the age in the clinical spectrum of giant cell arteritis (GCA).
  
  
  METHODS
  The case records of all patients diagnosed with biopsy-proven GCA at the Department of Medicine of the Hospital Xeral-Calde (Lugo, Northwest Spain) between 1981 and 2006 were reviewed.
  
  
  RESULTS
  During the period of study, 273 Lugo residents were diagnosed with biopsy-proven GCA. The mean age +/- standard deviation at the time of disease diagnosis was 75.1+/-6.8 years (median: 75 years; interquartile range 71-80 years). A longer delay to the diagnosis was observed in patients younger than 70 years of age (13.2+/-12.8 weeks) compared to those 70 years and older (9.4+/-10.2 weeks) (p=0.03). Patients younger than 70 years presented more frequently polymyalgia rheumatica (p=0.02), cerebrovascular accidents (p=0.004), peripheral arteriopathy of recent onset due to large artery stenosis (p=0.03) and high alkaline phosphatase values (p=0.001) than those 70 years and older. Individuals 70-79 years of age at the time of disease diagnosis had ESR values (90.2+/-22.8 mm/1st hour) lower than those observed in patients younger than 70 years (98.3+/-22.2 mm/1st hour) or 80 years and older (99.5+/-20.6 mm/1st hour) (p=0.005). However, no significant differences in the frequency of visual ischemic complications according to the age at the time of disease diagnosis were observed.
  
  
  CONCLUSIONS
  The results from this study display differences in the clinical spectrum of the disease according to the age of disease onset.
authors.affiliation: Division of Rheumatology, Hospital Xeral-Calde, Lugo, Spain.
authors.forename: M J
authors.initials: MJ
authors.lastname: Lopez-Diaz
authors.forename: J
authors.initials: J
authors.lastname: Llorca
authors.forename: C
authors.initials: C
authors.lastname: Gonzalez-Juanatey
authors.forename: J L
authors.initials: JL
authors.lastname: Peña-Sagredo
authors.forename: J
authors.initials: J
authors.lastname: Martin
authors.forename: M A
authors.initials: MA
authors.lastname: Gonzalez-Gay
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D001799:Blood Sedimentation; D015331:Cohort Studies; D018450:Disease Progression; D005260:Female; D013700:Giant Cell Arteritis / Q000175:diagnosis* / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011111:Polymyalgia Rheumatica / Q000175:diagnosis / Q000503:physiopathology; D012189:Retrospective Studies; D013699:Temporal Arteries / Q000473:pathology*