小儿反复呼吸道感染发病的相关因素病例对照研究

目的：探讨小儿反复呼吸道感染（RRTI）的危险因素，为降低儿童RRTI发病率提供理论依据。方法：设计方案为病例对照研究，调查148例RRTI惠儿和296例健康对照组儿童的父母情况，出生时情况，生活环境，喂养情况，并采用非条件Logistic回归分析，排除混杂因素，找出导致RRTI发病的相关危险因素。结果：研究显示人均居住面积〈13m^2（OR=3．620；95CI：0．348—12．256）；同住人吸烟（OR=3．159；95CI：0．368-9．450）；禾进行母乳喂养（OR=3．237；95CI：0．394-11．432）是RRTI发病的相关危险因素。结论：为了减少RRTI的发病率，应提倡母乳喂养，减少被动吸烟，保持居住环境空气流通。

Case-control Study on Related Factors of Respiratory Tract Infections

Objective： To explore the risk factors of recurrent respiratory tract infection （RRTI） in children, develop preventive measures to reduce the prevalence of RRTI in children. Method： Using a population-based case-control study, through the investigation of 148 cases of children with RRTI and 296 healthy controls were parents of children, birth information, living environment information, feeding information, And the unconditional Logistic regression analysis, eliminating confounding factors, find out the cause of risk factors related to pathogenesis of RRTI. Result： Per capita living area less than 13 square meters （ OR = 3. 620 ;95CI ：0. 348-12.256） ; Passive smoking （ OR = 3. 159 ;95CI ：0.568-9. 450 ） ; not breasffeed （OR= 3. 237 ;95CI： 0. 394-11. 432 ） is RRTI disease related risk factors. Conclusion： Breast-feeding should be promoted, reducing passive smoking, keeping the living environment of air circulation in order to reduce the incidence of RRTI.