Demographic and clinical description of study subjects.

All patients were defined NRL-allergic on the basis of presence of both history of allergic symptoms after allergen exposure and specific IgE and skin prick test positive to NRL.

所有患者均被判定为天然橡胶乳胶（NRL）过敏者，判定依据为同时具备两类特征：一是存在过敏原暴露后出现过敏症状的病史，二是针对天然橡胶乳胶的特异性免疫球蛋白E（specific IgE）检测与皮肤点刺试验（skin prick test）结果均呈阳性。