研究显示,学步年龄是多数持续哮喘儿童肺结构改变和肺功能进展的重要时期。美国研究人员认为,有类似哮喘症状的学龄前儿童,6岁前的哮鸣音类型和肺功能直到16岁也不会改变太多。他们对1200名3岁前和6岁时出现下呼吸道疾病的儿童的研究结果显示,无论以前是否有哮鸣音,6岁时的哮鸣音与青少年时期的持续哮鸣症状有关。6岁时增加的特异性过敏、持续存 Studies have shown that toddlers’ age is the most important period for most children with persistent asthma to undergo changes in their lung structure and progress in their lung function. US researchers believe that preschoolers with asthma symptoms do not change too much wheezing type and lung function until age sixteen. Their findings on 1,200 children with lower respiratory disease before age 3 and 6 show wheezing at age 6 is associated with persistent wheezing in adolescence, regardless of previous wheezing. 6-year-old increase in the specific allergy, persist