Patients were recruited from within the Vasculitis Clinical Research Consortium (VCRC) Patient Contact Registry to participate in an online questionnaire. More than 3000 patients, representing all the different types of idiopathic vasculitis, are currently enrolled into the on-line registry. The different types of vasculitis available for study include: Behçets disease, Churg-Strauss Syndrome, CNS Vasculitis, Giant Cell Arteritis, granulomatosis with polyangiitis (Wegener's granulomatosis), Henoch-Schöenlein Purpura, Microscopic Polyangiitis, Polyarteritis Nodosa, or Takayasu's Arteritis.