目的:探讨儿童反复呼吸道感染(RRTI)与环境的关系,为降低儿童RRTI患病率制定相应的预防措施。方法:对RRTI患儿及健康儿童各101例进行问卷调查,采用原子吸收法检测其血铅水平。应用SAS 6.12软件包对资料进行统计分析。结果:与健康对照组儿童比较,RRTI组患儿家庭豪华装修、被动吸烟、入托、季节及血铅差异有统计学意义(P<0.05)。结论:家庭豪华装修、被动吸烟、入托、季节、血铅偏高可能是儿童反复呼吸道感染的易感因素。 Objective: To explore the relationship between RRTI and the environment in children and to provide corresponding preventive measures to reduce the prevalence of RRTI in children. Methods: 101 cases of RRTI children and healthy children were surveyed by questionnaire, and their blood lead levels were measured by atomic absorption spectrometry. SAS 6.12 software package for statistical analysis of the data. Results: Compared with children in healthy control group, there was significant difference in luxury decoration, passive smoking, nursery, seasons and blood lead in RRTI group (P <0.05). Conclusion: Luxury decoration, passive smoking, nursery, seasons and high blood lead may be the predisposing factors for recurrent respiratory tract infections in children.