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Contact to cat or dog, allergies and parental education

By C. J. Apfelbacher, M. Ollert, J. Ring, H. Behrendt, U. Kramer

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Abstract

Whether or not associations between animal contact and allergy/atopy are homogeneous across social strata has not yet been investigated. The aim of this study was to estimate the association between animal contact (cat, dog) and allergy/atopy in 6-yr-old school beginners, stratified by parental educational level. A total of 30794, 6-yr old children participated in cross-sectional studies between 1991 and 2000 in Germany. Allergic sensitization to common aeroallergens and symptoms and diagnoses of atopic diseases (asthma, eczema, hay fever) were the dependent variables. Contact with dog/cat were the independent variables. Logistic regression was used to adjust for confounding. Analyses were stratified for parental education. Prevalences of hay fever, eczema, specific sensitization to pollen and house dust mite increased, while the prevalence of contact to cat and dog decreased with parental educational level. Globally significant positive associations between cat contact and sensitization to cat (interaction significant) and between dog contact and wheezing remained significant in the highest and medium/highest educational strata respectively. A globally significant inverse association between cat contact and hay fever remained significant in the highest educational stratum only. The inverse association of contact to dog with eczema was globally significant, but not in the strata. When estimating the associations between animal contact and allergy/atopy in children, effect modification by social status should be considered. Cat contact seems to increase the odds of sensitization to cat only in children whose parents have a high level of education.

Date 2010
Publication Title Pediatric Allergy and Immunology
Volume 21
Issue 2p1
Pages 284-291
ISBN/ISSN 0905-6157
DOI 10.1111/j.1399-3038.2009.00893.x
Language English
Author Address Department of Dermatology and Allergy Biederstein, Technische Universitat Munchen, Biedersteiner Strasse 29, 80802 Munich, Germany. christian.apfelbacher@web.de
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Tags
  1. Allergy
  2. Asthma
  3. Atopy
  4. Carnivores
  5. Cats
  6. Developed countries
  7. Diseases
  8. Dogs
  9. Eczema
  10. Epidemiology
  11. Europe
  12. Exposure
  13. Germany
  14. Humans
  15. Mammals
  16. OECD countries
  17. parents
  18. peer-reviewed
  19. Pets and companion animals
  20. Primates
  21. Respiratory hypersensitivity
  22. risk factors
  23. Social psychology and social anthropology
  24. socioeconomics
Badges
  1. peer-reviewed