Serveur d'exploration sur les relations entre la France et l'Australie

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<title xml:lang="en">BMI in relation to sperm count: an updated systematic review and collaborative meta-analysis</title>
<author>
<name sortKey="Sermondade, N" sort="Sermondade, N" uniqKey="Sermondade N" first="N." last="Sermondade">N. Sermondade</name>
<affiliation>
<nlm:aff id="af1">
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
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<institution>Hôpital Jean Verdier (AP-HP)</institution>
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<addr-line>93143 Bondy</addr-line>
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<country>France</country>
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<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
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<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
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<country>France</country>
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</affiliation>
</author>
<author>
<name sortKey="Faure, C" sort="Faure, C" uniqKey="Faure C" first="C." last="Faure">C. Faure</name>
<affiliation>
<nlm:aff id="af1">
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
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<institution>Hôpital Jean Verdier (AP-HP)</institution>
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<addr-line>93143 Bondy</addr-line>
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<country>France</country>
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</affiliation>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
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<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
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<country>France</country>
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</affiliation>
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<author>
<name sortKey="Fezeu, L" sort="Fezeu, L" uniqKey="Fezeu L" first="L." last="Fezeu">L. Fezeu</name>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
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<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
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<country>France</country>
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<author>
<name sortKey="Shayeb, A G" sort="Shayeb, A G" uniqKey="Shayeb A" first="A. G." last="Shayeb">A. G. Shayeb</name>
<affiliation>
<nlm:aff id="af3">
<institution>University Hospital of Wales</institution>
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<addr-line>Heath Park, Cardiff CF 14 4XW</addr-line>
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<country>UK</country>
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</affiliation>
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<author>
<name sortKey="Bonde, J P" sort="Bonde, J P" uniqKey="Bonde J" first="J. P." last="Bonde">J. P. Bonde</name>
<affiliation>
<nlm:aff id="af4">
<addr-line>Department of Occupational and Environmental Medicine</addr-line>
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<institution>Bispebjerg Hospital of Copenhagen University</institution>
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<addr-line>Bispebjerg Bakke, 2400 Copenhagen NV</addr-line>
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<country>Denmark</country>
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</affiliation>
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<author>
<name sortKey="Jensen, T K" sort="Jensen, T K" uniqKey="Jensen T" first="T. K." last="Jensen">T. K. Jensen</name>
<affiliation>
<nlm:aff id="af5">
<institution>University Department of Growth and Reproduction</institution>
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<addr-line>GR 5064, Rigshospitalet, Blegdamsveg 9, 2100 Copenhagen</addr-line>
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<country>Denmark</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Van Wely, M" sort="Van Wely, M" uniqKey="Van Wely M" first="M." last="Van Wely">M. Van Wely</name>
<affiliation>
<nlm:aff id="af6">
<addr-line>Centre for Reproductive Medicine, Department of Obstetrics and Gynaecology</addr-line>
,
<institution>Academic Medical Centre</institution>
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<addr-line>Meibergdreef 9, H4-205, 1105 AZ Amsterdam</addr-line>
,
<country>The Netherlands</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Cao, J" sort="Cao, J" uniqKey="Cao J" first="J." last="Cao">J. Cao</name>
<affiliation>
<nlm:aff id="af7">
<addr-line>College of Preventive Medicine</addr-line>
,
<institution>Third Military Medical University</institution>
,
<addr-line>No. 30 Gaotanyan Road, Shapingba District, Chongqing 400038</addr-line>
,
<country>China</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Martini, A C" sort="Martini, A C" uniqKey="Martini A" first="A. C." last="Martini">A. C. Martini</name>
<affiliation>
<nlm:aff id="af8">
<institution>Instituto de Fisiologia, Facultad de Ciencias Medicas, Universidad Nacional de Cordoba</institution>
,
<addr-line>Santa Rosa 1085, X5000ESU Cordoba</addr-line>
,
<country>Argentina</country>
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</affiliation>
</author>
<author>
<name sortKey="Eskandar, M" sort="Eskandar, M" uniqKey="Eskandar M" first="M." last="Eskandar">M. Eskandar</name>
<affiliation>
<nlm:aff id="af9">
<addr-line>Department of Obstetrics and Gynaecology</addr-line>
,
<institution>College of Medicine, King Khalid University</institution>
,
<addr-line>PO Box 641, Abha</addr-line>
,
<country>Saudi Arabia</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Chavarro, J E" sort="Chavarro, J E" uniqKey="Chavarro J" first="J. E." last="Chavarro">J. E. Chavarro</name>
<affiliation>
<nlm:aff id="af10">
<addr-line>Department of Nutrition and Epidemiology</addr-line>
,
<institution>Harvard School of Public Health</institution>
,
<addr-line>665 Huntington Ave, Boston, MA 02115</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af11">
<addr-line>Channing Laboratory, Department of Medicine</addr-line>
,
<institution>Brigham and Women's Hospital and Harvard Medical School</institution>
,
<addr-line>Boston, MA 02115</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Koloszar, S" sort="Koloszar, S" uniqKey="Koloszar S" first="S." last="Koloszar">S. Koloszar</name>
<affiliation>
<nlm:aff id="af12">
<addr-line>Department of Obstetrics and Gynaecology</addr-line>
,
<institution>University of Szeged</institution>
,
<addr-line>6725 Szeged, Semmelweis u.1.</addr-line>
,
<country>Hungary</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Twigt, J M" sort="Twigt, J M" uniqKey="Twigt J" first="J. M." last="Twigt">J. M. Twigt</name>
<affiliation>
<nlm:aff id="af13">
<addr-line>Departments of Obstetrics and Gynaecology, Room Ee22.71a, Erasmus MC</addr-line>
,
<institution>University Medical Center</institution>
,
<addr-line>PO Box 2040, 3000 CA Rotterdam</addr-line>
,
<country>The Netherlands</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Ramlau Hansen, C H" sort="Ramlau Hansen, C H" uniqKey="Ramlau Hansen C" first="C. H." last="Ramlau-Hansen">C. H. Ramlau-Hansen</name>
<affiliation>
<nlm:aff id="af14">
<addr-line>Department of Public Health, Section of Epidemiology</addr-line>
,
<institution>Aarhus University</institution>
,
<addr-line>8000 Aarhus C</addr-line>
,
<country>Denmark</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Borges, E" sort="Borges, E" uniqKey="Borges E" first="E." last="Borges">E. Borges</name>
<affiliation>
<nlm:aff id="af15">
<institution>Fertility-Assisted Fertilization Center</institution>
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<addr-line>Av. Brig. Luis Antonio, 4545 Sao Paulo</addr-line>
,
<country>Brazil</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Lotti, F" sort="Lotti, F" uniqKey="Lotti F" first="F." last="Lotti">F. Lotti</name>
<affiliation>
<nlm:aff id="af16">
<addr-line>Sexual Medicine and Andrology Unit, Department of Clinical Physiopathology</addr-line>
,
<institution>University of Florence</institution>
,
<addr-line>Viale Pieraccini 6, I-50139 Florence</addr-line>
,
<country>Italy</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Steegers Theunissen, R P M" sort="Steegers Theunissen, R P M" uniqKey="Steegers Theunissen R" first="R. P. M." last="Steegers-Theunissen">R. P. M. Steegers-Theunissen</name>
<affiliation>
<nlm:aff id="af13">
<addr-line>Departments of Obstetrics and Gynaecology, Room Ee22.71a, Erasmus MC</addr-line>
,
<institution>University Medical Center</institution>
,
<addr-line>PO Box 2040, 3000 CA Rotterdam</addr-line>
,
<country>The Netherlands</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Zorn, B" sort="Zorn, B" uniqKey="Zorn B" first="B." last="Zorn">B. Zorn</name>
<affiliation>
<nlm:aff id="af17">
<addr-line>Andrology Center, Department of Obstetrics and Gynecology</addr-line>
,
<institution>University Medical Center Ljubljana</institution>
,
<addr-line>Ljubljana</addr-line>
,
<country>Slovenia</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Polotsky, A J" sort="Polotsky, A J" uniqKey="Polotsky A" first="A. J." last="Polotsky">A. J. Polotsky</name>
<affiliation>
<nlm:aff id="af18">
<addr-line>Department of Obstetrics and Gynecology</addr-line>
,
<institution>University of Colorado Denver</institution>
,
<addr-line>12631 East 17th Avenue, Mail Stop B198-3, Academic Office 1, Room 4515, Aurora, CO 80045</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="La Vignera, S" sort="La Vignera, S" uniqKey="La Vignera S" first="S." last="La Vignera">S. La Vignera</name>
<affiliation>
<nlm:aff id="af19">
<institution>University of Catania, Section of Andrology, Endocrinology and Internal Medicine, Policlinico ‘G. Rodolico’</institution>
,
<addr-line>Via S. Sofia 78, 95123 Catania</addr-line>
,
<country>Italy</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Eskenazi, B" sort="Eskenazi, B" uniqKey="Eskenazi B" first="B." last="Eskenazi">B. Eskenazi</name>
<affiliation>
<nlm:aff id="af20">
<addr-line>Center for Environmental Research and Children's Health</addr-line>
,
<institution>UC Berkeley School of Public Health, 1995 University Avenue</institution>
,
<addr-line>Suite 265, Berkeley, CA 94704</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Tremellen, K" sort="Tremellen, K" uniqKey="Tremellen K" first="K." last="Tremellen">K. Tremellen</name>
<affiliation>
<nlm:aff id="af21">
<addr-line>Repromed, 180 Fullarton Road, Dulwich, Adelaide & School of Pharmacy and Medical Sciences</addr-line>
,
<institution>University of South Australia</institution>
,
<addr-line>Adelaide</addr-line>
,
<country>South Australia</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Magnusdottir, E V" sort="Magnusdottir, E V" uniqKey="Magnusdottir E" first="E. V." last="Magnusdottir">E. V. Magnusdottir</name>
<affiliation>
<nlm:aff id="af22">
<addr-line>Department of Pharmacology and Toxicology</addr-line>
,
<institution>University of Iceland</institution>
,
<addr-line>Hofsvallagata 53, IS-107 Reykjavik</addr-line>
,
<country>Iceland</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Fejes, I" sort="Fejes, I" uniqKey="Fejes I" first="I." last="Fejes">I. Fejes</name>
<affiliation>
<nlm:aff id="af23">
<addr-line>Department of Ophthalmology</addr-line>
,
<institution>University of Szeged</institution>
,
<addr-line>H6720 Szeged, Koranyi fsr 10-11</addr-line>
,
<country>Hungary</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Hercberg, S" sort="Hercberg, S" uniqKey="Hercberg S" first="S." last="Hercberg">S. Hercberg</name>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af24">
<addr-line>Département de Santé Publique</addr-line>
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<institution>Hôpital Avicenne (AP-HP)</institution>
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<addr-line>93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Levy, R" sort="Levy, R" uniqKey="Levy R" first="R." last="Lévy">R. Lévy</name>
<affiliation>
<nlm:aff id="af1">
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
,
<institution>Hôpital Jean Verdier (AP-HP)</institution>
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<addr-line>93143 Bondy</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Czernichow, S" sort="Czernichow, S" uniqKey="Czernichow S" first="S." last="Czernichow">S. Czernichow</name>
<affiliation>
<nlm:aff id="af25">
<addr-line>Department of Nutrition</addr-line>
,
<institution>Ambroise Paré Hospital (AP-HP); University of Versailles Saint Quentin en Yvelines</institution>
,
<addr-line>9 avenue Charles-de-Gaulle, 92100 Boulogne-Billancourt</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af26">
<institution>INSERM, U1018, Centre for Research in Epidemiology and Population Health</institution>
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<addr-line>Villejuif</addr-line>
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<country>France</country>
</nlm:aff>
</affiliation>
</author>
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<idno type="pmid">23242914</idno>
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<idno type="doi">10.1093/humupd/dms050</idno>
<date when="2012">2012</date>
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<title xml:lang="en" level="a" type="main">BMI in relation to sperm count: an updated systematic review and collaborative meta-analysis</title>
<author>
<name sortKey="Sermondade, N" sort="Sermondade, N" uniqKey="Sermondade N" first="N." last="Sermondade">N. Sermondade</name>
<affiliation>
<nlm:aff id="af1">
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
,
<institution>Hôpital Jean Verdier (AP-HP)</institution>
,
<addr-line>93143 Bondy</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Faure, C" sort="Faure, C" uniqKey="Faure C" first="C." last="Faure">C. Faure</name>
<affiliation>
<nlm:aff id="af1">
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
,
<institution>Hôpital Jean Verdier (AP-HP)</institution>
,
<addr-line>93143 Bondy</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Fezeu, L" sort="Fezeu, L" uniqKey="Fezeu L" first="L." last="Fezeu">L. Fezeu</name>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Shayeb, A G" sort="Shayeb, A G" uniqKey="Shayeb A" first="A. G." last="Shayeb">A. G. Shayeb</name>
<affiliation>
<nlm:aff id="af3">
<institution>University Hospital of Wales</institution>
,
<addr-line>Heath Park, Cardiff CF 14 4XW</addr-line>
,
<country>UK</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Bonde, J P" sort="Bonde, J P" uniqKey="Bonde J" first="J. P." last="Bonde">J. P. Bonde</name>
<affiliation>
<nlm:aff id="af4">
<addr-line>Department of Occupational and Environmental Medicine</addr-line>
,
<institution>Bispebjerg Hospital of Copenhagen University</institution>
,
<addr-line>Bispebjerg Bakke, 2400 Copenhagen NV</addr-line>
,
<country>Denmark</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Jensen, T K" sort="Jensen, T K" uniqKey="Jensen T" first="T. K." last="Jensen">T. K. Jensen</name>
<affiliation>
<nlm:aff id="af5">
<institution>University Department of Growth and Reproduction</institution>
,
<addr-line>GR 5064, Rigshospitalet, Blegdamsveg 9, 2100 Copenhagen</addr-line>
,
<country>Denmark</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Van Wely, M" sort="Van Wely, M" uniqKey="Van Wely M" first="M." last="Van Wely">M. Van Wely</name>
<affiliation>
<nlm:aff id="af6">
<addr-line>Centre for Reproductive Medicine, Department of Obstetrics and Gynaecology</addr-line>
,
<institution>Academic Medical Centre</institution>
,
<addr-line>Meibergdreef 9, H4-205, 1105 AZ Amsterdam</addr-line>
,
<country>The Netherlands</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Cao, J" sort="Cao, J" uniqKey="Cao J" first="J." last="Cao">J. Cao</name>
<affiliation>
<nlm:aff id="af7">
<addr-line>College of Preventive Medicine</addr-line>
,
<institution>Third Military Medical University</institution>
,
<addr-line>No. 30 Gaotanyan Road, Shapingba District, Chongqing 400038</addr-line>
,
<country>China</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Martini, A C" sort="Martini, A C" uniqKey="Martini A" first="A. C." last="Martini">A. C. Martini</name>
<affiliation>
<nlm:aff id="af8">
<institution>Instituto de Fisiologia, Facultad de Ciencias Medicas, Universidad Nacional de Cordoba</institution>
,
<addr-line>Santa Rosa 1085, X5000ESU Cordoba</addr-line>
,
<country>Argentina</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Eskandar, M" sort="Eskandar, M" uniqKey="Eskandar M" first="M." last="Eskandar">M. Eskandar</name>
<affiliation>
<nlm:aff id="af9">
<addr-line>Department of Obstetrics and Gynaecology</addr-line>
,
<institution>College of Medicine, King Khalid University</institution>
,
<addr-line>PO Box 641, Abha</addr-line>
,
<country>Saudi Arabia</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Chavarro, J E" sort="Chavarro, J E" uniqKey="Chavarro J" first="J. E." last="Chavarro">J. E. Chavarro</name>
<affiliation>
<nlm:aff id="af10">
<addr-line>Department of Nutrition and Epidemiology</addr-line>
,
<institution>Harvard School of Public Health</institution>
,
<addr-line>665 Huntington Ave, Boston, MA 02115</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af11">
<addr-line>Channing Laboratory, Department of Medicine</addr-line>
,
<institution>Brigham and Women's Hospital and Harvard Medical School</institution>
,
<addr-line>Boston, MA 02115</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Koloszar, S" sort="Koloszar, S" uniqKey="Koloszar S" first="S." last="Koloszar">S. Koloszar</name>
<affiliation>
<nlm:aff id="af12">
<addr-line>Department of Obstetrics and Gynaecology</addr-line>
,
<institution>University of Szeged</institution>
,
<addr-line>6725 Szeged, Semmelweis u.1.</addr-line>
,
<country>Hungary</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Twigt, J M" sort="Twigt, J M" uniqKey="Twigt J" first="J. M." last="Twigt">J. M. Twigt</name>
<affiliation>
<nlm:aff id="af13">
<addr-line>Departments of Obstetrics and Gynaecology, Room Ee22.71a, Erasmus MC</addr-line>
,
<institution>University Medical Center</institution>
,
<addr-line>PO Box 2040, 3000 CA Rotterdam</addr-line>
,
<country>The Netherlands</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Ramlau Hansen, C H" sort="Ramlau Hansen, C H" uniqKey="Ramlau Hansen C" first="C. H." last="Ramlau-Hansen">C. H. Ramlau-Hansen</name>
<affiliation>
<nlm:aff id="af14">
<addr-line>Department of Public Health, Section of Epidemiology</addr-line>
,
<institution>Aarhus University</institution>
,
<addr-line>8000 Aarhus C</addr-line>
,
<country>Denmark</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Borges, E" sort="Borges, E" uniqKey="Borges E" first="E." last="Borges">E. Borges</name>
<affiliation>
<nlm:aff id="af15">
<institution>Fertility-Assisted Fertilization Center</institution>
,
<addr-line>Av. Brig. Luis Antonio, 4545 Sao Paulo</addr-line>
,
<country>Brazil</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Lotti, F" sort="Lotti, F" uniqKey="Lotti F" first="F." last="Lotti">F. Lotti</name>
<affiliation>
<nlm:aff id="af16">
<addr-line>Sexual Medicine and Andrology Unit, Department of Clinical Physiopathology</addr-line>
,
<institution>University of Florence</institution>
,
<addr-line>Viale Pieraccini 6, I-50139 Florence</addr-line>
,
<country>Italy</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Steegers Theunissen, R P M" sort="Steegers Theunissen, R P M" uniqKey="Steegers Theunissen R" first="R. P. M." last="Steegers-Theunissen">R. P. M. Steegers-Theunissen</name>
<affiliation>
<nlm:aff id="af13">
<addr-line>Departments of Obstetrics and Gynaecology, Room Ee22.71a, Erasmus MC</addr-line>
,
<institution>University Medical Center</institution>
,
<addr-line>PO Box 2040, 3000 CA Rotterdam</addr-line>
,
<country>The Netherlands</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Zorn, B" sort="Zorn, B" uniqKey="Zorn B" first="B." last="Zorn">B. Zorn</name>
<affiliation>
<nlm:aff id="af17">
<addr-line>Andrology Center, Department of Obstetrics and Gynecology</addr-line>
,
<institution>University Medical Center Ljubljana</institution>
,
<addr-line>Ljubljana</addr-line>
,
<country>Slovenia</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Polotsky, A J" sort="Polotsky, A J" uniqKey="Polotsky A" first="A. J." last="Polotsky">A. J. Polotsky</name>
<affiliation>
<nlm:aff id="af18">
<addr-line>Department of Obstetrics and Gynecology</addr-line>
,
<institution>University of Colorado Denver</institution>
,
<addr-line>12631 East 17th Avenue, Mail Stop B198-3, Academic Office 1, Room 4515, Aurora, CO 80045</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="La Vignera, S" sort="La Vignera, S" uniqKey="La Vignera S" first="S." last="La Vignera">S. La Vignera</name>
<affiliation>
<nlm:aff id="af19">
<institution>University of Catania, Section of Andrology, Endocrinology and Internal Medicine, Policlinico ‘G. Rodolico’</institution>
,
<addr-line>Via S. Sofia 78, 95123 Catania</addr-line>
,
<country>Italy</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Eskenazi, B" sort="Eskenazi, B" uniqKey="Eskenazi B" first="B." last="Eskenazi">B. Eskenazi</name>
<affiliation>
<nlm:aff id="af20">
<addr-line>Center for Environmental Research and Children's Health</addr-line>
,
<institution>UC Berkeley School of Public Health, 1995 University Avenue</institution>
,
<addr-line>Suite 265, Berkeley, CA 94704</addr-line>
,
<country>USA</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Tremellen, K" sort="Tremellen, K" uniqKey="Tremellen K" first="K." last="Tremellen">K. Tremellen</name>
<affiliation>
<nlm:aff id="af21">
<addr-line>Repromed, 180 Fullarton Road, Dulwich, Adelaide & School of Pharmacy and Medical Sciences</addr-line>
,
<institution>University of South Australia</institution>
,
<addr-line>Adelaide</addr-line>
,
<country>South Australia</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Magnusdottir, E V" sort="Magnusdottir, E V" uniqKey="Magnusdottir E" first="E. V." last="Magnusdottir">E. V. Magnusdottir</name>
<affiliation>
<nlm:aff id="af22">
<addr-line>Department of Pharmacology and Toxicology</addr-line>
,
<institution>University of Iceland</institution>
,
<addr-line>Hofsvallagata 53, IS-107 Reykjavik</addr-line>
,
<country>Iceland</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Fejes, I" sort="Fejes, I" uniqKey="Fejes I" first="I." last="Fejes">I. Fejes</name>
<affiliation>
<nlm:aff id="af23">
<addr-line>Department of Ophthalmology</addr-line>
,
<institution>University of Szeged</institution>
,
<addr-line>H6720 Szeged, Koranyi fsr 10-11</addr-line>
,
<country>Hungary</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Hercberg, S" sort="Hercberg, S" uniqKey="Hercberg S" first="S." last="Hercberg">S. Hercberg</name>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af24">
<addr-line>Département de Santé Publique</addr-line>
,
<institution>Hôpital Avicenne (AP-HP)</institution>
,
<addr-line>93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Levy, R" sort="Levy, R" uniqKey="Levy R" first="R." last="Lévy">R. Lévy</name>
<affiliation>
<nlm:aff id="af1">
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
,
<institution>Hôpital Jean Verdier (AP-HP)</institution>
,
<addr-line>93143 Bondy</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af2">
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Czernichow, S" sort="Czernichow, S" uniqKey="Czernichow S" first="S." last="Czernichow">S. Czernichow</name>
<affiliation>
<nlm:aff id="af25">
<addr-line>Department of Nutrition</addr-line>
,
<institution>Ambroise Paré Hospital (AP-HP); University of Versailles Saint Quentin en Yvelines</institution>
,
<addr-line>9 avenue Charles-de-Gaulle, 92100 Boulogne-Billancourt</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af26">
<institution>INSERM, U1018, Centre for Research in Epidemiology and Population Health</institution>
,
<addr-line>Villejuif</addr-line>
,
<country>France</country>
</nlm:aff>
</affiliation>
</author>
</analytic>
<series>
<title level="j">Human Reproduction Update</title>
<idno type="ISSN">1355-4786</idno>
<idno type="eISSN">1460-2369</idno>
<imprint>
<date when="2012">2012</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass></textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">
<sec>
<title>BACKGROUND</title>
<p>The global obesity epidemic has paralleled a decrease in semen quality. Yet, the association between obesity and sperm parameters remains controversial. The purpose of this report was to update the evidence on the association between BMI and sperm count through a systematic review with meta-analysis.</p>
</sec>
<sec>
<title>METHODS</title>
<p>A systematic review of available literature (with no language restriction) was performed to investigate the impact of BMI on sperm count. Relevant studies published until June 2012 were identified from a Pubmed and EMBASE search. We also included unpublished data (
<italic>n</italic>
= 717 men) obtained from the Infertility Center of Bondy, France. Abstracts of relevant articles were examined and studies that could be included in this review were retrieved. Authors of relevant studies for the meta-analysis were contacted by email and asked to provide standardized data.</p>
</sec>
<sec>
<title>RESULTS</title>
<p>A total of 21 studies were included in the meta-analysis, resulting in a sample of 13 077 men from the general population and attending fertility clinics. Data were stratified according to the total sperm count as normozoospermia, oligozoospermia and azoospermia. Standardized weighted mean differences in sperm concentration did not differ significantly across BMI categories. There was a J-shaped relationship between BMI categories and risk of oligozoospermia or azoospermia. Compared with men of normal weight, the odds ratio (95% confidence interval) for oligozoospermia or azoospermia was 1.15 (0.93–1.43) for underweight, 1.11 (1.01–1.21) for overweight, 1.28 (1.06–1.55) for obese and 2.04 (1.59–2.62) for morbidly obese men.</p>
</sec>
<sec>
<title>CONCLUSIONS</title>
<p>Overweight and obesity were associated with an increased prevalence of azoospermia or oligozoospermia. The main limitation of this report is that studied populations varied, with men recruited from both the general population and infertile couples. Whether weight normalization could improve sperm parameters should be evaluated further.</p>
</sec>
</div>
</front>
</TEI>
<pmc article-type="review-article">
<pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Hum Reprod Update</journal-id>
<journal-id journal-id-type="iso-abbrev">Hum. Reprod. Update</journal-id>
<journal-id journal-id-type="publisher-id">humupd</journal-id>
<journal-id journal-id-type="hwp">humupd</journal-id>
<journal-title-group>
<journal-title>Human Reproduction Update</journal-title>
</journal-title-group>
<issn pub-type="ppub">1355-4786</issn>
<issn pub-type="epub">1460-2369</issn>
<publisher>
<publisher-name>Oxford University Press</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="pmid">23242914</article-id>
<article-id pub-id-type="pmc">3621293</article-id>
<article-id pub-id-type="doi">10.1093/humupd/dms050</article-id>
<article-id pub-id-type="publisher-id">dms050</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Reviews</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>BMI in relation to sperm count: an updated systematic review and collaborative meta-analysis</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Sermondade</surname>
<given-names>N.</given-names>
</name>
<xref ref-type="aff" rid="af1">1</xref>
<xref ref-type="aff" rid="af2">2</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Faure</surname>
<given-names>C.</given-names>
</name>
<xref ref-type="aff" rid="af1">1</xref>
<xref ref-type="aff" rid="af2">2</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Fezeu</surname>
<given-names>L.</given-names>
</name>
<xref ref-type="aff" rid="af2">2</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Shayeb</surname>
<given-names>A.G.</given-names>
</name>
<xref ref-type="aff" rid="af3">3</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Bonde</surname>
<given-names>J.P.</given-names>
</name>
<xref ref-type="aff" rid="af4">4</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Jensen</surname>
<given-names>T.K.</given-names>
</name>
<xref ref-type="aff" rid="af5">5</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Van Wely</surname>
<given-names>M.</given-names>
</name>
<xref ref-type="aff" rid="af6">6</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Cao</surname>
<given-names>J.</given-names>
</name>
<xref ref-type="aff" rid="af7">7</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Martini</surname>
<given-names>A.C.</given-names>
</name>
<xref ref-type="aff" rid="af8">8</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Eskandar</surname>
<given-names>M.</given-names>
</name>
<xref ref-type="aff" rid="af9">9</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Chavarro</surname>
<given-names>J.E.</given-names>
</name>
<xref ref-type="aff" rid="af10">10</xref>
<xref ref-type="aff" rid="af11">11</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Koloszar</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="af12">12</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Twigt</surname>
<given-names>J.M.</given-names>
</name>
<xref ref-type="aff" rid="af13">13</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Ramlau-Hansen</surname>
<given-names>C.H.</given-names>
</name>
<xref ref-type="aff" rid="af14">14</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Borges</surname>
<given-names>E.</given-names>
<suffix>Jr</suffix>
</name>
<xref ref-type="aff" rid="af15">15</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Lotti</surname>
<given-names>F.</given-names>
</name>
<xref ref-type="aff" rid="af16">16</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Steegers-Theunissen</surname>
<given-names>R.P.M.</given-names>
</name>
<xref ref-type="aff" rid="af13">13</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Zorn</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="af17">17</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Polotsky</surname>
<given-names>A.J.</given-names>
</name>
<xref ref-type="aff" rid="af18">18</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>La Vignera</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="af19">19</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Eskenazi</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="af20">20</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Tremellen</surname>
<given-names>K.</given-names>
</name>
<xref ref-type="aff" rid="af21">21</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Magnusdottir</surname>
<given-names>E.V.</given-names>
</name>
<xref ref-type="aff" rid="af22">22</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Fejes</surname>
<given-names>I.</given-names>
</name>
<xref ref-type="aff" rid="af23">23</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Hercberg</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="af2">2</xref>
<xref ref-type="aff" rid="af24">24</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Lévy</surname>
<given-names>R.</given-names>
</name>
<xref ref-type="aff" rid="af1">1</xref>
<xref ref-type="aff" rid="af2">2</xref>
<xref ref-type="author-notes" rid="AN1"></xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Czernichow</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="af25">25</xref>
<xref ref-type="aff" rid="af26">26</xref>
<xref ref-type="corresp" rid="cor1">*</xref>
<xref ref-type="author-notes" rid="AN1"></xref>
</contrib>
</contrib-group>
<aff id="af1">
<label>1</label>
<addr-line>Service d'Histologie-Embryologie-Cytogénétique-CECOS</addr-line>
,
<institution>Hôpital Jean Verdier (AP-HP)</institution>
,
<addr-line>93143 Bondy</addr-line>
,
<country>France</country>
</aff>
<aff id="af2">
<label>2</label>
<addr-line>Unité de Recherche en Epidémiologie Nutritionnelle, UMR U557 Inserm; U1125 Inra; Cnam</addr-line>
;
<institution>Université Paris 13</institution>
,
<addr-line>CRNH IdF, 93017 Bobigny</addr-line>
,
<country>France</country>
</aff>
<aff id="af3">
<label>3</label>
<institution>University Hospital of Wales</institution>
,
<addr-line>Heath Park, Cardiff CF 14 4XW</addr-line>
,
<country>UK</country>
</aff>
<aff id="af4">
<label>4</label>
<addr-line>Department of Occupational and Environmental Medicine</addr-line>
,
<institution>Bispebjerg Hospital of Copenhagen University</institution>
,
<addr-line>Bispebjerg Bakke, 2400 Copenhagen NV</addr-line>
,
<country>Denmark</country>
</aff>
<aff id="af5">
<label>5</label>
<institution>University Department of Growth and Reproduction</institution>
,
<addr-line>GR 5064, Rigshospitalet, Blegdamsveg 9, 2100 Copenhagen</addr-line>
,
<country>Denmark</country>
</aff>
<aff id="af6">
<label>6</label>
<addr-line>Centre for Reproductive Medicine, Department of Obstetrics and Gynaecology</addr-line>
,
<institution>Academic Medical Centre</institution>
,
<addr-line>Meibergdreef 9, H4-205, 1105 AZ Amsterdam</addr-line>
,
<country>The Netherlands</country>
</aff>
<aff id="af7">
<label>7</label>
<addr-line>College of Preventive Medicine</addr-line>
,
<institution>Third Military Medical University</institution>
,
<addr-line>No. 30 Gaotanyan Road, Shapingba District, Chongqing 400038</addr-line>
,
<country>China</country>
</aff>
<aff id="af8">
<label>8</label>
<institution>Instituto de Fisiologia, Facultad de Ciencias Medicas, Universidad Nacional de Cordoba</institution>
,
<addr-line>Santa Rosa 1085, X5000ESU Cordoba</addr-line>
,
<country>Argentina</country>
</aff>
<aff id="af9">
<label>9</label>
<addr-line>Department of Obstetrics and Gynaecology</addr-line>
,
<institution>College of Medicine, King Khalid University</institution>
,
<addr-line>PO Box 641, Abha</addr-line>
,
<country>Saudi Arabia</country>
</aff>
<aff id="af10">
<label>10</label>
<addr-line>Department of Nutrition and Epidemiology</addr-line>
,
<institution>Harvard School of Public Health</institution>
,
<addr-line>665 Huntington Ave, Boston, MA 02115</addr-line>
,
<country>USA</country>
</aff>
<aff id="af11">
<label>11</label>
<addr-line>Channing Laboratory, Department of Medicine</addr-line>
,
<institution>Brigham and Women's Hospital and Harvard Medical School</institution>
,
<addr-line>Boston, MA 02115</addr-line>
,
<country>USA</country>
</aff>
<aff id="af12">
<label>12</label>
<addr-line>Department of Obstetrics and Gynaecology</addr-line>
,
<institution>University of Szeged</institution>
,
<addr-line>6725 Szeged, Semmelweis u.1.</addr-line>
,
<country>Hungary</country>
</aff>
<aff id="af13">
<label>13</label>
<addr-line>Departments of Obstetrics and Gynaecology, Room Ee22.71a, Erasmus MC</addr-line>
,
<institution>University Medical Center</institution>
,
<addr-line>PO Box 2040, 3000 CA Rotterdam</addr-line>
,
<country>The Netherlands</country>
</aff>
<aff id="af14">
<label>14</label>
<addr-line>Department of Public Health, Section of Epidemiology</addr-line>
,
<institution>Aarhus University</institution>
,
<addr-line>8000 Aarhus C</addr-line>
,
<country>Denmark</country>
</aff>
<aff id="af15">
<label>15</label>
<institution>Fertility-Assisted Fertilization Center</institution>
,
<addr-line>Av. Brig. Luis Antonio, 4545 Sao Paulo</addr-line>
,
<country>Brazil</country>
</aff>
<aff id="af16">
<label>16</label>
<addr-line>Sexual Medicine and Andrology Unit, Department of Clinical Physiopathology</addr-line>
,
<institution>University of Florence</institution>
,
<addr-line>Viale Pieraccini 6, I-50139 Florence</addr-line>
,
<country>Italy</country>
</aff>
<aff id="af17">
<label>17</label>
<addr-line>Andrology Center, Department of Obstetrics and Gynecology</addr-line>
,
<institution>University Medical Center Ljubljana</institution>
,
<addr-line>Ljubljana</addr-line>
,
<country>Slovenia</country>
</aff>
<aff id="af18">
<label>18</label>
<addr-line>Department of Obstetrics and Gynecology</addr-line>
,
<institution>University of Colorado Denver</institution>
,
<addr-line>12631 East 17th Avenue, Mail Stop B198-3, Academic Office 1, Room 4515, Aurora, CO 80045</addr-line>
,
<country>USA</country>
</aff>
<aff id="af19">
<label>19</label>
<institution>University of Catania, Section of Andrology, Endocrinology and Internal Medicine, Policlinico ‘G. Rodolico’</institution>
,
<addr-line>Via S. Sofia 78, 95123 Catania</addr-line>
,
<country>Italy</country>
</aff>
<aff id="af20">
<label>20</label>
<addr-line>Center for Environmental Research and Children's Health</addr-line>
,
<institution>UC Berkeley School of Public Health, 1995 University Avenue</institution>
,
<addr-line>Suite 265, Berkeley, CA 94704</addr-line>
,
<country>USA</country>
</aff>
<aff id="af21">
<label>21</label>
<addr-line>Repromed, 180 Fullarton Road, Dulwich, Adelaide & School of Pharmacy and Medical Sciences</addr-line>
,
<institution>University of South Australia</institution>
,
<addr-line>Adelaide</addr-line>
,
<country>South Australia</country>
</aff>
<aff id="af22">
<label>22</label>
<addr-line>Department of Pharmacology and Toxicology</addr-line>
,
<institution>University of Iceland</institution>
,
<addr-line>Hofsvallagata 53, IS-107 Reykjavik</addr-line>
,
<country>Iceland</country>
</aff>
<aff id="af23">
<label>23</label>
<addr-line>Department of Ophthalmology</addr-line>
,
<institution>University of Szeged</institution>
,
<addr-line>H6720 Szeged, Koranyi fsr 10-11</addr-line>
,
<country>Hungary</country>
</aff>
<aff id="af24">
<label>24</label>
<addr-line>Département de Santé Publique</addr-line>
,
<institution>Hôpital Avicenne (AP-HP)</institution>
,
<addr-line>93017 Bobigny</addr-line>
,
<country>France</country>
</aff>
<aff id="af25">
<label>25</label>
<addr-line>Department of Nutrition</addr-line>
,
<institution>Ambroise Paré Hospital (AP-HP); University of Versailles Saint Quentin en Yvelines</institution>
,
<addr-line>9 avenue Charles-de-Gaulle, 92100 Boulogne-Billancourt</addr-line>
,
<country>France</country>
</aff>
<aff id="af26">
<label>26</label>
<institution>INSERM, U1018, Centre for Research in Epidemiology and Population Health</institution>
,
<addr-line>Villejuif</addr-line>
,
<country>France</country>
</aff>
<author-notes>
<corresp id="cor1">*Correspondence address. Tel: +
<phone>33-1-49-09-47-66</phone>
; Fax: +33-1-49-09-45-18; E-mail:
<email>sebastien.czernichow@apr.aphp.fr</email>
</corresp>
<fn id="AN1">
<label></label>
<p>Both authors equally contributed to the manuscript.</p>
</fn>
</author-notes>
<pub-date pub-type="ppub">
<month>5</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>12</day>
<month>12</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="pmc-release">
<day>1</day>
<month>5</month>
<year>2014</year>
</pub-date>
<pmc-comment> PMC Release delay is 12 months and 0 days and was based on the . </pmc-comment>
<volume>19</volume>
<issue>3</issue>
<fpage>221</fpage>
<lpage>231</lpage>
<history>
<date date-type="received">
<day>21</day>
<month>8</month>
<year>2012</year>
</date>
<date date-type="rev-recd">
<day>27</day>
<month>9</month>
<year>2012</year>
</date>
<date date-type="accepted">
<day>2</day>
<month>10</month>
<year>2012</year>
</date>
</history>
<permissions>
<copyright-statement>© The Author 2012. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email: journals.permissions@oup.com</copyright-statement>
<copyright-year>2012</copyright-year>
</permissions>
<self-uri content-type="pdf" xlink:type="simple" xlink:href="dms050.pdf"></self-uri>
<abstract>
<sec>
<title>BACKGROUND</title>
<p>The global obesity epidemic has paralleled a decrease in semen quality. Yet, the association between obesity and sperm parameters remains controversial. The purpose of this report was to update the evidence on the association between BMI and sperm count through a systematic review with meta-analysis.</p>
</sec>
<sec>
<title>METHODS</title>
<p>A systematic review of available literature (with no language restriction) was performed to investigate the impact of BMI on sperm count. Relevant studies published until June 2012 were identified from a Pubmed and EMBASE search. We also included unpublished data (
<italic>n</italic>
= 717 men) obtained from the Infertility Center of Bondy, France. Abstracts of relevant articles were examined and studies that could be included in this review were retrieved. Authors of relevant studies for the meta-analysis were contacted by email and asked to provide standardized data.</p>
</sec>
<sec>
<title>RESULTS</title>
<p>A total of 21 studies were included in the meta-analysis, resulting in a sample of 13 077 men from the general population and attending fertility clinics. Data were stratified according to the total sperm count as normozoospermia, oligozoospermia and azoospermia. Standardized weighted mean differences in sperm concentration did not differ significantly across BMI categories. There was a J-shaped relationship between BMI categories and risk of oligozoospermia or azoospermia. Compared with men of normal weight, the odds ratio (95% confidence interval) for oligozoospermia or azoospermia was 1.15 (0.93–1.43) for underweight, 1.11 (1.01–1.21) for overweight, 1.28 (1.06–1.55) for obese and 2.04 (1.59–2.62) for morbidly obese men.</p>
</sec>
<sec>
<title>CONCLUSIONS</title>
<p>Overweight and obesity were associated with an increased prevalence of azoospermia or oligozoospermia. The main limitation of this report is that studied populations varied, with men recruited from both the general population and infertile couples. Whether weight normalization could improve sperm parameters should be evaluated further.</p>
</sec>
</abstract>
<kwd-group>
<kwd>obesity</kwd>
<kwd>BMI</kwd>
<kwd>sperm concentration</kwd>
<kwd>total sperm count</kwd>
<kwd>meta-analysis</kwd>
</kwd-group>
<custom-meta-group>
<custom-meta>
<meta-name>cover-date</meta-name>
<meta-value>May/June 2013</meta-value>
</custom-meta>
</custom-meta-group>
</article-meta>
</front>
</pmc>
</record>

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