Lødrup Carlsen, K.C.* ; Roll, S.* ; Carlsen, K.-H.* ; Mowinckel, P.* ; Wijga, A.H.* ; Brunekreef, B.* ; Torrent, M.* ; Roberts, G.* ; Arshad, S.H.* ; Kull, I.* ; Krämer, U.* ; von Berg, A.* ; Eller, E.* ; Host, A.* ; Kuehni, C.* ; Spycher, B.* ; Sunyer, J.* ; Chen, C.-M. ; Reich, A.* ; Asarnoj, A.* ; Puig, C.* ; Herbarth, O.* ; John, J.M.M.* ; van Steen, K.* ; Willich, S.N.* ; Wahn, U.* ; Lau, S.* ; Keil, T.*
     
 
    
        
Does pet ownership in infancy lead to asthma or allergy at school age? Pooled analysis of individual participant data from 11 European birth cohorts.
    
    
        
    
    
        
        PLoS ONE 7:e43214 (2012)
    
    
    
		
		
			
				Objective: To examine the associations between pet keeping in early childhood and asthma and allergies in children aged 6-10 years. Design: Pooled analysis of individual participant data of 11 prospective European birth cohorts that recruited a total of over 22,000 children in the 1990s. Exposure definition: Ownership of only cats, dogs, birds, rodents, or cats/dogs combined during the first 2 years of life. Outcome definition: Current asthma (primary outcome), allergic asthma, allergic rhinitis and allergic sensitization during 610 years of age. Data synthesis: Three-step approach: (i) Common definition of outcome and exposure variables across cohorts; (ii) calculation of adjusted effect estimates for each cohort; (iii) pooling of effect estimates by using random effects meta-analysis models. Results: We found no association between furry and feathered pet keeping early in life and asthma in school age. For example, the odds ratio for asthma comparing cat ownership with "no pets" (10 studies, 11489 participants) was 1.00 (95% confidence interval 0.78 to 1.28) (I 2 = 9%; p = 0.36). The odds ratio for asthma comparing dog ownership with "no pets" (9 studies, 11433 participants) was 0.77 (0.58 to 1.03) (I-2 = 0%, p = 0.89). Owning both cat(s) and dog(s) compared to "no pets" resulted in an odds ratio of 1.04 (0.59 to 1.84) (I-2 = 33%, p = 0.18). Similarly, for allergic asthma and for allergic rhinitis we did not find associations regarding any type of pet ownership early in life. However, we found some evidence for an association between ownership of furry pets during the first 2 years of life and reduced likelihood of becoming sensitized to aero-allergens. Conclusions: Pet ownership in early life did not appear to either increase or reduce the risk of asthma or allergic rhinitis symptoms in children aged 6-10. Advice from health care practitioners to avoid or to specifically acquire pets for primary prevention of asthma or allergic rhinitis in children should not be given.
			
			
				
			
		 
		
			
				
					
					Impact Factor
					Scopus SNIP
					Web of Science
Times Cited
					Scopus
Cited By
					
					Altmetric
					
				 
				
			 
		 
		
     
    
        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        RESPIRATORY HEALTH SURVEY; DOG OWNERSHIP; CAT ALLERGEN; PROPENSITY SCORE; ATOPIC DISEASES; YOUNG-CHILDREN; EARLY EXPOSURE; SENSITIZATION; CHILDHOOD; SYMPTOMS
    
 
    
        Keywords plus
        
    
 
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2012
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2012
    
 
    
    
        ISSN (print) / ISBN
        1932-6203
    
 
    
        e-ISSN
        
    
 
    
        ISBN
        
    
 
    
        Bandtitel
        
    
 
    
        Konferenztitel
        
    
 
	
        Konferzenzdatum
        
    
     
	
        Konferenzort
        
    
 
	
        Konferenzband
        
    
 
     
		
    
        Quellenangaben
        
	    Band: 7,  
	    Heft: 8,  
	    Seiten: ,  
	    Artikelnummer: e43214 
	    Supplement: ,  
	
    
 
  
        
            Reihe
            
        
 
        
            Verlag
            Public Library of Science (PLoS)
        
 
        
            Verlagsort
            Lawrence, Kan.
        
 
	
        
            Tag d. mündl. Prüfung
            0000-00-00
        
 
        
            Betreuer
            
        
 
        
            Gutachter
            
        
 
        
            Prüfer
            
        
 
        
            Topic
            
        
 
	
        
            Hochschule
            
        
 
        
            Hochschulort
            
        
 
        
            Fakultät
            
        
 
    
        
            Veröffentlichungsdatum
            0000-00-00
        
 
         
        
            Anmeldedatum
            0000-00-00
        
 
        
            Anmelder/Inhaber
            
        
 
        
            weitere Inhaber
            
        
 
        
            Anmeldeland
            
        
 
        
            Priorität
            
        
 
    
        Begutachtungsstatus
        Peer reviewed
    
 
    
        Institut(e)
        Institute of Epidemiology (EPI)
    
 
    
        POF Topic(s)
        30503 - Chronic Diseases of the Lung and Allergies
    
 
    
        Forschungsfeld(er)
        Genetics and Epidemiology
    
 
    
        PSP-Element(e)
        G-503900-001
    
 
    
        Förderungen
        
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2012-10-04