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    The role of cats and dogs in asthma and allergy: A systematic review.
        
        Int. J. Hyg. Environ. Health 213, 1-31 (2010)
    
    
    
				Studies have reported contradictory effects of cat and dog exposure on allergy, resulting in inconsistent recommendations on animal avoidance. We conducted a systematic review of observational studies published in English from 2000 to January 2009. It shows in this review that the reported exposure-response relationships are contradictory. A total of 17 and 13 birth cohort studies on cat and dog exposure, respectively, are included in the review. Most of the birth cohort studies found that cat or dog exposure in early life had no effect on the development of asthma or wheezing symptoms and dog exposure during infancy was found to protect children from developing sensitization against aeroallergens. A total of 7 and 6 prospective studies in school-age children or adults on cat and dog exposure, respectively, are included in this review and most of these studies suggested an inverse association between cat exposure and asthma and wheezing symptoms. As for cross-sectional studies, 26 and 21 studies on cat and dog exposure, respectively, are included in this review, which cover a broad range of age groups and geographical areas, and reported inconsistent results. The evidence summarised in this systematic review needs to be interpreted with caution, the inconsistent study results may be due to study design, exposure assessment, and avoidance measure. The exposure-response relationships may also alter in geographical areas where the community prevalence of cats and dogs are significantly different. However, as the evidence of the effects of pet keeping on subsequent development of asthma or allergic diseases presented in this review are not overwhelmingly strong, the decision of whether to keep a cat or a dog in the family should be based on arguments other than the concern of developing asthma and allergy.
			
			
		Impact Factor
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					Cited By
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				2.640
					1.130
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Review
    
 
     
    
    
        Schlagwörter
        Allergen; Allergy; Cat; Dog; Systematic Review
    
 
     
    
    
        Sprache
        
    
 
    
        Veröffentlichungsjahr
        2010
    
 
     
    
        HGF-Berichtsjahr
        2010
    
 
    
    
        ISSN (print) / ISBN
        1438-4639
    
 
    
        e-ISSN
        1618-131X
    
 
     
     
     
	     
	 
	 
     
		
    
        Quellenangaben
        
	    Band: 213,  
	    Heft: 1,  
	    Seiten: 1-31 
	    
	    
	
    
 
  
         
        
            Verlag
            Elsevier
        
 
        
            Verlagsort
            Amsterdam ; Boston, Mass. ; London ; New York, NY ; Oxford ; Paris ; Philadelphia, Pa. ; San Diego, Calif. ; St. Louis, Mo. ; München
        
 
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Epidemiology (EPI)
    
 
     
     
    
        PSP-Element(e)
        G-503900-002
    
 
     
     	
    
    
        Scopus ID
        74149094428
    
    
        PubMed ID
        20053584
    
    
        Erfassungsdatum
        2010-07-27