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. 2024 Jul 25;14(8):930. doi: 10.3390/life14080930

Table 1.

ACR, Chapel Hill, and EULAR/PRINTO/PRES diagnostic criteria.

Classification Title Diagnostic Criteria
ACR diagnostic criteria (1990) [56] Two of the following:
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    Age < 20 years old;

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    Palpable purpura;

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    Acute abdominal pain;

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    Biopsy showing granulocytes in the walls of small arterioles or venules.
1994 Chapel Hill Criteria [35] (Revised in 2012) IgAV was defined as vasculitis with IgA1-dominant immune deposits, affecting small vessels (predominantly capillaries, venules, or arterioles) that often involve the skin and gastrointestinal tract, and cause arthritis and glomerulonephritis.
EULAR/PRINTO/PRES diagnostic criteria (2010) [57] Purpura or petechiae and one of the following:
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    Abdominal pain;

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    Arthritis or arthralgia;

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    Renal involvement;

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    Leukocytoclastic vasculitis with predominant IgA deposits, proliferative glomerulonephritis, and predominant IgA deposits.