eISSN: 2299-0046
ISSN: 1642-395X
Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii
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2/2020
vol. 37
 
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abstract:
Original paper

Dog keeping at home before and during pregnancy decreased the risk of food allergy in 1-year-old children

Katarzyna Smejda
1
,
Kinga Polanska
2
,
Wlodzimierz Stelmach
3
,
Pawel Majak
4
,
Iwona Stelmach
1

  1. Department of Paediatrics and Allergy, Medical University of Lodz, Copernicus Memorial Hospital, Lodz, Poland
  2. Department of Environmental Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland
  3. Department of Social and Preventive Medicine, Medical University of Lodz, Lodz, Poland
  4. Department of Internal Medicine, Asthma and Allergy, Medical University of Lodz, Lodz, Poland
Adv Dermatol Allergol 2020; XXXVII (2): 255–261
DOI: https://doi.org/10.5114/ada.2018.80584
Online publish date: 2020/05/06
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Introduction
The relationship between allergen exposure to animals in pregnancy and the development of allergic symptoms is not clear.

Aim
To evaluate the association between prenatal and postnatal exposure to pet ownership and development of atopic dermatitis, food allergy and wheezing in children at the age of 1 and 2.

Material and methods
The mother-child pairs included in this study were part of the Polish Mother and Child Cohort. Mothers in each trimester of pregnancy and 1 year after childbirth have completed a questionnaire on animal exposure. Children’s health status was assessed at around one year and two years of age.

Results
Keeping a dog at home before and during pregnancy (every trimester) decreased the risk of food allergy in the first year of life. On the other hand, keeping any animal other than a dog (cat, hamster, guinea pig, rabbit) before pregnancy and during each trimester separately increased the risk of food allergy in the first year of life of children. Keeping a guinea pig in the first trimester of pregnancy increased the risk of wheezing in the first year of life. The analysis did not show any significant associations between keeping animals at home before and during pregnancy and the occurrence of atopic dermatitis in the second year of life.

Conclusions
Keeping a dog at home before and during pregnancy decreased the risk of food allergy in 1-year-old children. This effect was eliminated in case of having a cat, hamster, guinea pig, or rabbit.

keywords:

children, pet, allergic diseases
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