title: Infant immunization and the occurrence of atopic disease in Dutch and German children: a nested case-control study.
abstract: Our goal was to assess the role of early childhood vaccination in the occurrence of respiratory symptoms and allergic sensitization in 7-8-year-old Dutch and German children. A nested case-control study was conducted among children participating in a large longitudinal study on respiratory health, to study the relationship between vaccination (bacille Calmette-Guérin (BCG), pertussis, measles/mumps, rubella, and Haemophilus influenza type b (Hib)) and respiratory symptoms and allergic sensitization. Parents of 510 7-8-year-old children with respiratory complaints and an equal number of randomly selected children without respiratory complaints were asked to complete a questionnaire. Blood samples were collected for specific serum IgE analysis. Vaccination status was assessed through the records of the participating Municipal Health Services. No association between vaccination against pertussis, measles, rubella, or Hib and respiratory symptoms or allergic sensitization was found. For sensitization against house dust mite, BCG vaccination resulted in an increased risk (OR, 2.28; 95% CI, 1.05-4.96). Birth order was inversely associated with allergic sensitization, but was not related to respiratory symptoms. We found an association between BCG vaccination and the subsequent risk for sensitization against house dust mite. No evidence was found for an association between vaccination and respiratory symptoms. Earlier reports of an association of birth order with atopic disease were supported by the results of the present study.
authors.affiliation: Institute for Hygiene and Environmental Medicine, RWTH Aachen, Aachen, Germany. monique.mommers@post.rwth-aachen.de
authors.forename: M
authors.initials: M
authors.lastname: Mommers
authors.forename: M
authors.initials: M
authors.lastname: Weishoff-Houben
authors.forename: G M H
authors.initials: GM
authors.lastname: Swaen
authors.forename: H
authors.initials: H
authors.lastname: Creemers
authors.forename: H
authors.initials: H
authors.lastname: Freund
authors.forename: W
authors.initials: W
authors.lastname: Dott
authors.forename: C P
authors.initials: CP
authors.lastname: van Schayck
mesh_terms: D001500:BCG Vaccine / Q000009:adverse effects; D016022:Case-Control Studies; D002648:Child; D005858:Germany; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology*; D007114:Immunization / Q000009:adverse effects*; D007073:Immunoglobulin E / Q000097:blood; D007223:Infant; D008137:Longitudinal Studies; D008458:Measles Vaccine / Q000009:adverse effects; D009108:Mumps Vaccine / Q000009:adverse effects; D009426:Netherlands; D010567:Pertussis Vaccine / Q000009:adverse effects; D012135:Respiratory Sounds / Q000209:etiology; D012411:Rubella Vaccine / Q000009:adverse effects; D011795:Surveys and Questionnaires; D014612:Vaccines / Q000009:adverse effects*
chemical_list: D001500:BCG Vaccine; D008458:Measles Vaccine; D009108:Mumps Vaccine; D010567:Pertussis Vaccine; D012411:Rubella Vaccine; D014612:Vaccines; D007073:Immunoglobulin E