Table 1.

CAAR grading for Cutaneous, Abdominal, Articular and Renal involvement in Henoch–Schönlein syndrome. The involvement is graded as absent, mild, moderate, or severe [1].

Cutaneous involvementabsent: -absent: No skin lesions -mild: Skin lesions located on buttocks and lower extremities alone -moderate: Skin lesions located on (a) buttocks and lower extremities and (b) either trunk or upper extremities -severe: Skin lesions located on (a) buttocks and lower extremities, (b) trunk and (c) upper extremities Abdominal involvement -absent: No symptoms, no findings -mild: Mild abdominal pain (medically elicited) -moderate: Moderate abdominal pain (transient complaints brought to medical attention) -severe: Severe abdominal pain and/or melena, and/or hematemesis, and/or intussusception Articular involvement -absent: No symptoms, no findings -mild: Symptoms or findings of articular involvement but no functional abnormalities -moderate: Symptoms and findings of articular involvement causing mild functional reduction (e.g., limping) -severe: Symptoms and findings causing moderate functional loss (e.g., inability to walk) Renal involvement -absent: Normal urinalysis -mild: Pathological hematuria, normal proteinuria (stick negative or [+]) -moderate: Pathological hematuria, mild-moderate proteinuria (stick + to ++) -severe: Pathological hematuria, severe proteinuria (stick ≥ +++)