Objective To determine sputum ECP, IL-5, sIL-2R and IgE levels in children with asthma in different stages and investigate their correlation and clinical significance. Methods The sputa were obtained from children with asthma and normal control children.

• 目的 了解各期哮喘患儿痰液嗜酸细胞阳离子蛋白（ECP），可溶性白细胞介素2 受体（sIL－ 2R），白细胞介素5（IL－5）和免疫球蛋白E（IgE） 水平，并探讨其相关性和临床意义。