Effect of pre- and postnatal tobacco smoke exposure on specific sensitization to food and inhalant allergens during the first 3 years of life

被引:118
作者
Kulig, M
Luck, W
Lau, S
Niggemann, B
Bergmann, R
Klettke, U
Guggenmoos-Holzmann, I
Wahn, U
机构
[1] Benjamin Franklin Univ Hosp, Inst Med Stat & Epidemiol, Berlin, Germany
[2] Humboldt Univ, Dept Pediat Pneumol & Immunol, Berlin, Germany
关键词
allergic sensitization; early childhood; food hypersensitivity; inhalant allergens; in utero and postnatal passive tobacco smoke exposure; parental atopy;
D O I
10.1034/j.1398-9995.1999.00753.x
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
Background: The study aimed to assess the effect of pre- and postnatal tobacco smoke exposure on specific sensitization to food allergens and inhalant allergens during the first 3 years of life. Methods: A total of 342 children of a prospective and observational birth cohort study on atopy (MAS) were included on the basis of a complete follow-up of specific IgE measurements at the ages of 1, 2, and 3 years with available questionnaire information about-the parental smoking habit at birth, 18 months, and 3 years of age. Study children were grouped into four exposure categories representing in utero and postnatal environmental tobacco smoke (ETS) exposure, and according to the number of cigarettes smoked by the parents. The effect on the development of allergic sensitization to food, outdoor, and indoor allergens by 3 years of age was determined by multiple logistic regression analyses. Results: At the age of 3, children who were pre- and postnatally exposed to tobacco smoke had a significantly higher risk of sensitization to food allergens (odds ratio: 2.3, 95% C.I.: 1.1-4.6) than unexposed children. Children who were only postnatally exposed by a smoking mother also had a 2.2 times higher risk (95% C.I.: 0.9-5.9) of sensitization than unexposed children. These two categories (pre- and/or postnatal exposure) contribute to the significant overall effect of the tobacco smoke exposure (P less than or equal to 0.02). No significant association between tobacco smoke exposure and specific sensitization to inhalant allergens was observed. The determining risk factors for this type of sensitization were atopic family history and mite- and cat-allergen exposure levels. Conclusions: During the first 3 years of life, both prenatal and postnatal tobacco smoke exposure has an adjuvant effect on allergic sensitization which seems to be restricted to allergens to which children are mainly exposed, in combination with the peak of the ETS exposure around the first birthday.
引用
收藏
页码:220 / 228
页数:9
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