Does Pet Ownership in Infancy Lead to Asthma or Allergy at School Age? Pooled Analysis of Individual Participant Data from 11 European Birth Cohorts
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{"title"=>"Does Pet Ownership in Infancy Lead to Asthma or Allergy at School Age? Pooled Analysis of Individual Participant Data from 11 European Birth Cohorts", "type"=>"journal", "authors"=>[{"first_name"=>"Karin C.", "last_name"=>"Lødrup Carlsen", "scopus_author_id"=>"6603838951"}, {"first_name"=>"Stephanie", "last_name"=>"Roll", "scopus_author_id"=>"8583935300"}, {"first_name"=>"Kai Håkon", "last_name"=>"Carlsen", "scopus_author_id"=>"22133339200"}, {"first_name"=>"Petter", "last_name"=>"Mowinckel", "scopus_author_id"=>"6603940379"}, {"first_name"=>"Alet H.", "last_name"=>"Wijga", "scopus_author_id"=>"6603665254"}, {"first_name"=>"Bert", "last_name"=>"Brunekreef", "scopus_author_id"=>"7103344174"}, {"first_name"=>"Maties", "last_name"=>"Torrent", "scopus_author_id"=>"57193228238"}, {"first_name"=>"Graham", "last_name"=>"Roberts", "scopus_author_id"=>"14047151700"}, {"first_name"=>"S. Hasan", "last_name"=>"Arshad", "scopus_author_id"=>"7004353614"}, {"first_name"=>"Inger", "last_name"=>"Kull", "scopus_author_id"=>"55904196600"}, {"first_name"=>"Ursula", "last_name"=>"Krämer", "scopus_author_id"=>"7102010419"}, {"first_name"=>"Andrea", "last_name"=>"von Berg", "scopus_author_id"=>"19838486900"}, {"first_name"=>"Esben", "last_name"=>"Eller", "scopus_author_id"=>"12779894700"}, {"first_name"=>"Arne", "last_name"=>"Høst", "scopus_author_id"=>"7005416942"}, {"first_name"=>"Claudia", "last_name"=>"Kuehni", "scopus_author_id"=>"6602978936"}, {"first_name"=>"Ben", "last_name"=>"Spycher", "scopus_author_id"=>"15840736500"}, {"first_name"=>"Jordi", "last_name"=>"Sunyer", "scopus_author_id"=>"7005058956"}, {"first_name"=>"Chih Mei", "last_name"=>"Chen", "scopus_author_id"=>"27172352600"}, {"first_name"=>"Andreas", "last_name"=>"Reich", "scopus_author_id"=>"56370947300"}, {"first_name"=>"Anna", "last_name"=>"Asarnoj", "scopus_author_id"=>"24723745700"}, {"first_name"=>"Carmen", "last_name"=>"Puig", "scopus_author_id"=>"55347684600"}, {"first_name"=>"Olf", "last_name"=>"Herbarth", "scopus_author_id"=>"7006932551"}, {"first_name"=>"Jestinah M.", "last_name"=>"Mahachie John", "scopus_author_id"=>"36143240400"}, {"first_name"=>"Kristel", "last_name"=>"van Steen", "scopus_author_id"=>"6602167158"}, {"first_name"=>"Stefan N.", "last_name"=>"Willich", "scopus_author_id"=>"7004388807"}, {"first_name"=>"Ulrich", "last_name"=>"Wahn", "scopus_author_id"=>"7102439525"}, {"first_name"=>"Susanne", "last_name"=>"Lau", "scopus_author_id"=>"7401596413"}, {"first_name"=>"Thomas", "last_name"=>"Keil", "scopus_author_id"=>"35292287200"}, {"first_name"=>"Magnus", "last_name"=>"Wickman", "scopus_author_id"=>"55825646000"}, {"first_name"=>"Eva", "last_name"=>"Hallner", "scopus_author_id"=>"8363825100"}, {"first_name"=>"Johan", "last_name"=>"Alm", "scopus_author_id"=>"7004855558"}, {"first_name"=>"Catarina", "last_name"=>"Almqvist", "scopus_author_id"=>"7003728779"}, {"first_name"=>"Göran", "last_name"=>"Wennergren", "scopus_author_id"=>"7005921751"}, {"first_name"=>"Bernt", "last_name"=>"Alm", "scopus_author_id"=>"7003429937"}, {"first_name"=>"Joachim", "last_name"=>"Heinrich", "scopus_author_id"=>"7201505289"}, {"first_name"=>"Henriette A.", "last_name"=>"Smit", "scopus_author_id"=>"7102782109"}, {"first_name"=>"Carel", "last_name"=>"Thijs", "scopus_author_id"=>"7004623240"}, {"first_name"=>"Monique", "last_name"=>"Mommers", "scopus_author_id"=>"6603607979"}, {"first_name"=>"Carsten", "last_name"=>"Bindslev-Jensen", "scopus_author_id"=>"7004294156"}, {"first_name"=>"Susanne", "last_name"=>"Halken", "scopus_author_id"=>"7003852859"}, {"first_name"=>"Maria Pia", "last_name"=>"Fantini", "scopus_author_id"=>"55255599200"}, {"first_name"=>"Francesca", "last_name"=>"Bravi", "scopus_author_id"=>"57191567496"}, {"first_name"=>"Daniela", "last_name"=>"Porta", "scopus_author_id"=>"7003832098"}, {"first_name"=>"Francesco", "last_name"=>"Forastiere", "scopus_author_id"=>"34568758600"}, {"first_name"=>"Adnan", "last_name"=>"Custovic", "scopus_author_id"=>"7006755479"}, {"first_name"=>"Ruta", "last_name"=>"Dubakiene", "scopus_author_id"=>"6506815732"}, {"first_name"=>"Jestinah", "last_name"=>"Mahachie", "scopus_author_id"=>"55348290700"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "pui"=>"365542819", "scopus"=>"2-s2.0-84865603463", "pmid"=>"22952649", "doi"=>"10.1371/journal.pone.0043214", "isbn"=>"1932-6203 (Electronic)\\n1932-6203 (Linking)", "sgr"=>"84865603463"}, "id"=>"4378c872-bc30-3c43-a3b4-5b1755676006", "abstract"=>"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 6-10 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.", "link"=>"http://www.mendeley.com/research/pet-ownership-infancy-lead-asthma-allergy-school-age-pooled-analysis-individual-participant-data-11", "reader_count"=>71, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>5, "Librarian"=>4, "Researcher"=>16, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>12, "Student > Postgraduate"=>7, "Other"=>10, "Student > Master"=>3, "Student > Bachelor"=>4, "Lecturer"=>1, "Professor"=>4}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>5, "Librarian"=>4, "Researcher"=>16, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>12, "Student > Postgraduate"=>7, "Other"=>10, "Student > Master"=>3, "Student > Bachelor"=>4, "Lecturer"=>1, "Professor"=>4}, "reader_count_by_subject_area"=>{"Unspecified"=>4, "Environmental Science"=>6, "Nursing and Health Professions"=>2, "Biochemistry, Genetics and Molecular Biology"=>1, "Mathematics"=>2, "Medicine and Dentistry"=>38, "Agricultural and Biological Sciences"=>8, "Psychology"=>4, "Social Sciences"=>3, "Computer Science"=>1, "Immunology and Microbiology"=>2}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>38}, "Social Sciences"=>{"Social Sciences"=>3}, "Psychology"=>{"Psychology"=>4}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>2}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>8}, "Computer Science"=>{"Computer Science"=>1}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>2}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Mathematics"=>{"Mathematics"=>2}, "Unspecified"=>{"Unspecified"=>4}, "Environmental Science"=>{"Environmental Science"=>6}}, "reader_count_by_country"=>{"Sweden"=>1, "Portugal"=>1, "Germany"=>1, "Ethiopia"=>1, "Spain"=>2}, "group_count"=>9}

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  • {"files"=>["https://ndownloader.figshare.com/files/583817"], "description"=>"<p>Meta-analyses of the adjusted odds ratios of <b>asthma</b> at 6–10 years of age and pet ownership in the first 2 years of life for: A), cat only vs. no pets; B), dog only vs. no pets; C) cat and dog only vs. no pets; D) bird only vs. no pets; E) rodents only vs. no pets.</p>", "links"=>[], "tags"=>["immunology", "public health and epidemiology", "pediatrics and child health", "respiratory medicine"], "article_id"=>254241, "categories"=>["Biotechnology", "Medicine", "Immunology"], "users"=>["Karin C. Lødrup Carlsen", "Stephanie Roll", "Kai-Håkon Carlsen", "Petter Mowinckel", "Alet H. Wijga", "Bert Brunekreef", "Maties Torrent", "Graham Roberts", "S. Hasan Arshad", "Inger Kull", "Ursula Krämer", "Andrea von Berg", "Esben Eller", "Arne Høst", "Claudia Kuehni", "Ben Spycher", "Jordi Sunyer", "Chih-Mei Chen", "Andreas Reich", "Anna Asarnoj", "Carmen Puig", "Olf Herbarth", "Jestinah M. Mahachie John", "Kristel Van Steen", "Stefan N. Willich", "Ulrich Wahn", "Susanne Lau", "Thomas Keil"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0043214.g001", "stats"=>{"downloads"=>1, "page_views"=>14, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Current_asthma_/254241", "title"=>"Current asthma.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 00:06:30"}
  • {"files"=>["https://ndownloader.figshare.com/files/584437"], "description"=>"<p>n.a. = not assessed.</p>1<p>in DARC, AMICS-Barcelona and AMICS-Menorca, sensitization data were only available for the age of 4 years.</p>", "links"=>[], "tags"=>["allergic", "asthma", "rhinitis", "sensitization", "aero-allergen", "follow-up", "10", "years", "11", "european"], "article_id"=>254868, "categories"=>["Biotechnology", "Medicine", "Immunology"], "users"=>["Karin C. Lødrup Carlsen", "Stephanie Roll", "Kai-Håkon Carlsen", "Petter Mowinckel", "Alet H. Wijga", "Bert Brunekreef", "Maties Torrent", "Graham Roberts", "S. Hasan Arshad", "Inger Kull", "Ursula Krämer", "Andrea von Berg", "Esben Eller", "Arne Høst", "Claudia Kuehni", "Ben Spycher", "Jordi Sunyer", "Chih-Mei Chen", "Andreas Reich", "Anna Asarnoj", "Carmen Puig", "Olf Herbarth", "Jestinah M. Mahachie John", "Kristel Van Steen", "Stefan N. Willich", "Ulrich Wahn", "Susanne Lau", "Thomas Keil"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0043214.t002", "stats"=>{"downloads"=>5, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Prevalence_of_current_asthma_allergic_asthma_sensitized_to_8805_1_aero_allergen_allergic_rhinitis_sensitized_to_8805_1_aero_allergen_and_allergic_sensitization_8805_1_aero_allergen_gt_0_35_kU_L_at_last_follow_up_assessment_between_6_to_10_years_in_11_Eur/254868", "title"=>"Prevalence of current asthma, allergic asthma (sensitized to ≥1 aero-allergen), allergic rhinitis (sensitized to ≥1 aero-allergen) and allergic sensitization (≥1 aero-allergen >0.35 kU/L) at last follow-up assessment between 6 to 10 years in 11 European birth cohorts.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 00:10:01"}
  • {"files"=>["https://ndownloader.figshare.com/files/583952"], "description"=>"<p>Meta-analyses of the adjusted odds of <b>allergic asthma</b> (sensitized to at least 1 aero-allergen; secondary endpoint) in early school age and ownership of pets in the first 2 years of life for: A), cat only vs. no pets; B), dog only vs. no pets; C) cat and dog only vs. no pets; D) bird only vs. no pets; E) rodents only vs. no pets.</p>", "links"=>[], "tags"=>["immunology", "public health and epidemiology", "pediatrics and child health", "respiratory medicine"], "article_id"=>254405, "categories"=>["Biotechnology", "Medicine", "Immunology"], "users"=>["Karin C. Lødrup Carlsen", "Stephanie Roll", "Kai-Håkon Carlsen", "Petter Mowinckel", "Alet H. Wijga", "Bert Brunekreef", "Maties Torrent", "Graham Roberts", "S. Hasan Arshad", "Inger Kull", "Ursula Krämer", "Andrea von Berg", "Esben Eller", "Arne Høst", "Claudia Kuehni", "Ben Spycher", "Jordi Sunyer", "Chih-Mei Chen", "Andreas Reich", "Anna Asarnoj", "Carmen Puig", "Olf Herbarth", "Jestinah M. Mahachie John", "Kristel Van Steen", "Stefan N. Willich", "Ulrich Wahn", "Susanne Lau", "Thomas Keil"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0043214.g002", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Allergic_asthma_/254405", "title"=>"Allergic asthma.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 00:07:26"}
  • {"files"=>["https://ndownloader.figshare.com/files/584216"], "description"=>"<p>Meta-analyses of the adjusted odds of <b>allergic rhinitis</b> (sensitized to at least 1 aero-allergen; secondary endpoint) in early school age and pet ownership in the first 2 years of life for: A), cat only vs. no pets; B), dog only vs. no pets; C) cat and dog only vs. no pets; D) bird only vs. no pets; E) rodents only vs. no pets.</p>", "links"=>[], "tags"=>["immunology", "public health and epidemiology", "pediatrics and child health", "respiratory medicine"], "article_id"=>254663, "categories"=>["Biotechnology", "Medicine", "Immunology"], "users"=>["Karin C. Lødrup Carlsen", "Stephanie Roll", "Kai-Håkon Carlsen", "Petter Mowinckel", "Alet H. Wijga", "Bert Brunekreef", "Maties Torrent", "Graham Roberts", "S. Hasan Arshad", "Inger Kull", "Ursula Krämer", "Andrea von Berg", "Esben Eller", "Arne Høst", "Claudia Kuehni", "Ben Spycher", "Jordi Sunyer", "Chih-Mei Chen", "Andreas Reich", "Anna Asarnoj", "Carmen Puig", "Olf Herbarth", "Jestinah M. Mahachie John", "Kristel Van Steen", "Stefan N. Willich", "Ulrich Wahn", "Susanne Lau", "Thomas Keil"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0043214.g004", "stats"=>{"downloads"=>3, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Allergic_rhinitis_/254663", "title"=>"Allergic rhinitis.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 00:08:54"}
  • {"files"=>["https://ndownloader.figshare.com/files/584342"], "description"=>"<p>ECA: Environment and Childhood Asthma Study. BAMSE: Children, Allergy, Milieu, Stockholm, Epidemiological Survey. DARC: Danish Allergy Research Council Study. PIAMA-NHS: The Prevention and Incidence of Asthma and Mite Allergy – Natural History Study. MAS: Multi-center Allergy Study. LISA: Lifestyle-related Factors on the Immune System and Development of Allergies in Childhood Study. GINI-B: German Infant Nutritional Intervention Study (observational part). AMICS: Asthma Multicentre Infant Cohort Study.</p>1<p>and no other furry or feathered pet.</p>2<p>3754 initially recruited and followed-up until 2 years; for ECA: 1877 invited for longer follow-up.</p>3<p>More children are part of the Leicester 1998 cohort, but for the present meta-analyses on early pet ownership we included only children who were recruited during the 1<sup>st</sup> year of life.</p>", "links"=>[], "tags"=>["cohort", "children", "years", "11", "european", "cohorts"], "article_id"=>254778, "categories"=>["Biotechnology", "Medicine", "Immunology"], "users"=>["Karin C. Lødrup Carlsen", "Stephanie Roll", "Kai-Håkon Carlsen", "Petter Mowinckel", "Alet H. Wijga", "Bert Brunekreef", "Maties Torrent", "Graham Roberts", "S. Hasan Arshad", "Inger Kull", "Ursula Krämer", "Andrea von Berg", "Esben Eller", "Arne Høst", "Claudia Kuehni", "Ben Spycher", "Jordi Sunyer", "Chih-Mei Chen", "Andreas Reich", "Anna Asarnoj", "Carmen Puig", "Olf Herbarth", "Jestinah M. Mahachie John", "Kristel Van Steen", "Stefan N. Willich", "Ulrich Wahn", "Susanne Lau", "Thomas Keil"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0043214.t001", "stats"=>{"downloads"=>4, "page_views"=>23, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Birth_cohort_acronym_study_setting_year_of_recruitment_number_of_children_recruited_and_pet_ownership_during_the_first_2_years_of_life_in_11_European_birth_cohorts_sorted_from_north_to_south_/254778", "title"=>"Birth cohort acronym, study setting, year of recruitment, number of children recruited, and pet ownership during the first 2 years of life in 11 European birth cohorts (sorted from north to south).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 00:09:33"}
  • {"files"=>["https://ndownloader.figshare.com/files/584080"], "description"=>"<p>Meta-analyses of the adjusted odds of <b>allergic sensitization</b> (sensitized to at least 1 aero-allergen) in early school age and pet ownership in the first 2 years of life for: A), cat only vs. no pets; B), dog only vs. no pets; C) cat and dog only vs. no pets; D) bird only vs. no pets; E) rodents only vs. no pets. (There were no IgE data available for Leicester 1998 cohort.)</p>", "links"=>[], "tags"=>["immunology", "public health and epidemiology", "pediatrics and child health", "respiratory medicine"], "article_id"=>254526, "categories"=>["Biotechnology", "Medicine", "Immunology"], "users"=>["Karin C. Lødrup Carlsen", "Stephanie Roll", "Kai-Håkon Carlsen", "Petter Mowinckel", "Alet H. Wijga", "Bert Brunekreef", "Maties Torrent", "Graham Roberts", "S. Hasan Arshad", "Inger Kull", "Ursula Krämer", "Andrea von Berg", "Esben Eller", "Arne Høst", "Claudia Kuehni", "Ben Spycher", "Jordi Sunyer", "Chih-Mei Chen", "Andreas Reich", "Anna Asarnoj", "Carmen Puig", "Olf Herbarth", "Jestinah M. Mahachie John", "Kristel Van Steen", "Stefan N. Willich", "Ulrich Wahn", "Susanne Lau", "Thomas Keil"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0043214.g003", "stats"=>{"downloads"=>2, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Allergic_sensitization_/254526", "title"=>"Allergic sensitization.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 00:08:10"}

PMC Usage Stats | Further Information

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Relative Metric

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