How common is Polyarteritis Nodosa?
It is uncommon.
PAN has an annual incidence of 2 to 9 cases per 1,000,000. There is no significant difference between the sexes. It affects all racial groups, with an average age at diagnosis ranging from the mid-40s to mid-60s. Children and young adults who develop a PAN-like disease frequently presenting with strokes should be screened for the adenosine deaminase 2 mutation, DADA2 disease .