Skip to main content

Table 1 Classification criteria for IgA vasculitis

From: IgA vasculitis in adults: the performance of the EULAR/PRINTO/PRES classification criteria in adults

ACR classification criteria (1990) [2]

EULAR/PRINTO/PRES classification criteria (2010) [3]

Two of the following criteria:

• age ≤ 20 years

• palpable purpura

• acute abdominal pain

• biopsy showing granulocytes in the walls of the small arterioles or venules

• Purpura or petechiae

AND

• One of the following four criteria

 ◦ abdominal pain

 ◦ arthritis or arthralgia

 ◦ renal involvement

 ◦ leucocytoclastic vasculitis with predominant IgA deposits or proliferative glomerulonephritis with predominant IgA deposits

sensitivity 87.1 %; specificity 87.7 %

sensitivity 100 %; specificity 87 %

  1. IgA immunoglobulin A-associated, ACR American College of Rheumatology, EULAR/PRINTO/PRES European League Against Rheumatism/Paediatric Rheumatology International Trials Organisation/Paediatric Rheumatology European Society