Table 1

VEGF concentration predicts biopsy positivity but is not useful to identify other diagnostic subgroups. Performance of VEGF expressed as sensitivity and specificity based on data dichotomised by the cut-off of 713 pg/mL, subgrouped according to method of diagnosis

ParameterAll patientsClinically diagnosed GCAUltrasound-positive GCABiopsy-proven GCA
  • GCA, giant cell arteritis; VEGF, vascular endothelial growth factor.