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1990 Criteria for the Classification of Churg-Strauss Syndrome (Tree Format)

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1990 Criteria for the Classification of Churg-Strauss Syndrome (Traditional Format), Their Sensitivity and Specificity Versus Other Defined Vasculitis Syndromes

CSS subsets

5. Asthma and eosinophilia >10%

3. No asthma, eosinophilia >10%, history of allergy

Non-CSS subsets

1. No asthma or eosinophilia >10%

2. No asthma, but eosinophilia >10%;, no history of allergy

4. Asthma without eosinophilia >10%

* The subset numbers also appear below the subset boxes in Figure 1. See Table 3 for definitions of criteria.