医学
怀孕
食物过敏
过敏
烟草烟雾
儿科
被动吸烟
队列研究
荟萃分析
环境卫生
母乳喂养
免疫学
内科学
遗传学
生物
作者
Hui Xing Lau,Jia Wei Lee,Qai Ven Yap,Yiong Huak Chan,Miny Samuel,Evelyn Xiu Ling Loo
摘要
Abstract Background There is no consensus on the effect of timing and type of smoke exposure on early allergy development. This study aimed to determine the relationship between early eczema or food allergy/hypersensitivity development in children by firstly investigating the effect of smoke exposure across critical development periods and secondly by analyzing effects of parental atcive or passive smoking. Methods Four databases (PubMed, Web of Science, Scopus and Embase) were searched in May 2022 and assessed by two independent reviewers. Case–control, cross‐sectional or cohort studies reporting on smoke exposure from preconception to postnatal periods and atopic eczema, food allergy and/or hypersensitivity outcomes by age 3 years were included. The Newcastle–Ottawa Scale was used to assess study quality. Random effects model was used to estimate the pooled risk ratios. Results From 1689 identified records, 32 studies with nearly 190,000 subjects were included. Parental smoking during preconception, pregnancy and postnatal periods was generally not associated with the risk of eczema, food allergy and food sensitisation development by age 3 years. Maternal active smoking during pregnancy was negatively associated with self‐reported doctor diagnosis of eczema (RR = 0.87, 95% CI 0.77–0.98; I 2 = 50.56) and maternal passive smoking during pregnancy was positively associated with clinician assessment of eczema in one study (RR = 1.38; 95% CI 1.06–1.79). Conclusion Our findings highlighted the importance of in utero programming in early‐life allergy development. Despite the weak evidence, our results suggest pregnant women should minimise their contact with second‐hand smoke to prevent offspring eczema development. There is a need for greater utilisation of objective allergy assessments in future studies.
科研通智能强力驱动
Strongly Powered by AbleSci AI