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Table 1 Patient characteristics

From: Association of HLA-DRB1 amino acid residues with giant cell arteritis: genetic association study, meta-analysis and geo-epidemiological investigation

Patient characteristic Value (% of those with data available) Number with data available
Female 161 (72 %) 225
Median age at onset of GCA (range), years 72 (50–94) 207
Biopsy-positive 140 (77 %) 183 (number of cases biopsied)
Median erythrocyte sedimentation rate at onset of GCA (range), mm/h 70 (5–150) 100
Median plasma viscosity at onset of GCA (range), mPa s 1.94 (1.53–2.65) 120
Median C-reactive protein at onset of GCA (range), mg/l 62.5 (<5–344) 154
Either ACR 1990 criteria for GCA fulfilled or biopsy-positive 207 (92 %) 225
Headache 184 (90 %) 204
Abnormal temporal artery as defined by ACR 1990 criteria 140 (67 %) 204
Jaw claudication 119 (57 %) 210
Visual or neurological features 116 (56 %) 207
  1. Owing to the retrospective recruitment of cases, contemporaneously recorded data on features of giant cell arteritis (GCA) at presentation were not always recorded in the medical notes. For this reason, in 24 cases, fulfilment of American College of Rheumatology (ACR) criteria could not be documented. Six of these were biopsy-proven. In some recruiting centres, plasma viscosity or C-reactive protein was measured instead of erythrocyte sedimentation rate