Is there seasonal variation in risk of Parkinson's disease?
Identifieur interne : 000074 ( Istex/Corpus ); précédent : 000073; suivant : 000075Is there seasonal variation in risk of Parkinson's disease?
Auteurs : Ronald B. Postuma ; Christina Wolfson ; Ali Rajput ; A. Jon Stoessl ; W. R. Wayne Martin ; Oksana Suchowersky ; Sylvain Chouinard ; Michel Panisset ; Mandar S. Jog ; David A. Grimes ; Connie Marras ; Anthony E. LangSource :
- Movement Disorders [ 0885-3185 ] ; 2007-06-15.
English descriptors
Abstract
Recent studies suggest that, for many adult‐onset neurological diseases, persons born at a certain time of year are at higher risk of the disease. Small‐scale studies have suggested that persons born in the spring may be at higher risk of developing Parkinson's disease (PD) late in life. There have also been suggestions that there are clusters of PD birth dates in the years of major influenza pandemics. To determine whether there is any seasonal variation in the birth dates of PD patients, we examined birth dates of 8,168 PD patients collected from subspecialty movement disorder clinics across Canada. Patterns of seasonality of birth were examined and compared with the general Canadian population. In addition, we compared counts of patients born in the years of major influenza pandemics with the number born in the surrounding years. We found no evidence of systematic seasonal variation in PD incidence by birth date, or of clustering of birth dates during influenza pandemic years in PD patients. © 2006 Movement Disorder Society
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DOI: 10.1002/mds.21272
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ISTEX:ECA57887B0D85D104B85E9FA8D52C1E62A4B6565Le document en format XML
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Postuma</name><affiliation><mods:affiliation>Department of Neurology, McGill University, Montreal General Hospital, Montreal, Quebec, Canada</mods:affiliation></affiliation><affiliation><mods:affiliation>Department of Neurology, L7‐305 Montreal General Hospital, 1650 Cedar Ave., Montreal, Quebec, Canada H3G 1A4</mods:affiliation></affiliation></author><author><name sortKey="Wolfson, Christina" sort="Wolfson, Christina" uniqKey="Wolfson C" first="Christina" last="Wolfson">Christina Wolfson</name><affiliation><mods:affiliation>Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada</mods:affiliation></affiliation></author><author><name sortKey="Rajput, Ali" sort="Rajput, Ali" uniqKey="Rajput A" first="Ali" last="Rajput">Ali Rajput</name><affiliation><mods:affiliation>University of Saskatchewan, Saskatoon, Saskatchewan, Canada</mods:affiliation></affiliation></author><author><name sortKey="Stoessl, A Jon" sort="Stoessl, A Jon" uniqKey="Stoessl A" first="A. 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Postuma</name><affiliation><mods:affiliation>Department of Neurology, McGill University, Montreal General Hospital, Montreal, Quebec, Canada</mods:affiliation></affiliation><affiliation><mods:affiliation>Department of Neurology, L7‐305 Montreal General Hospital, 1650 Cedar Ave., Montreal, Quebec, Canada H3G 1A4</mods:affiliation></affiliation></author><author><name sortKey="Wolfson, Christina" sort="Wolfson, Christina" uniqKey="Wolfson C" first="Christina" last="Wolfson">Christina Wolfson</name><affiliation><mods:affiliation>Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada</mods:affiliation></affiliation></author><author><name sortKey="Rajput, Ali" sort="Rajput, Ali" uniqKey="Rajput A" first="Ali" last="Rajput">Ali Rajput</name><affiliation><mods:affiliation>University of Saskatchewan, Saskatoon, Saskatchewan, Canada</mods:affiliation></affiliation></author><author><name sortKey="Stoessl, A Jon" sort="Stoessl, A Jon" uniqKey="Stoessl A" first="A. 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Wayne Martin</name><affiliation><mods:affiliation>Movement Disorder Clinic, University of Alberta, Edmonton, Alberta, Canada</mods:affiliation></affiliation></author><author><name sortKey="Suchowersky, Oksana" sort="Suchowersky, Oksana" uniqKey="Suchowersky O" first="Oksana" last="Suchowersky">Oksana Suchowersky</name><affiliation><mods:affiliation>Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada, Canada</mods:affiliation></affiliation></author><author><name sortKey="Chouinard, Sylvain" sort="Chouinard, Sylvain" uniqKey="Chouinard S" first="Sylvain" last="Chouinard">Sylvain Chouinard</name><affiliation><mods:affiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</mods:affiliation></affiliation></author><author><name sortKey="Panisset, Michel" sort="Panisset, Michel" uniqKey="Panisset M" first="Michel" last="Panisset">Michel Panisset</name><affiliation><mods:affiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</mods:affiliation></affiliation></author><author><name sortKey="Jog, Mandar S" sort="Jog, Mandar S" uniqKey="Jog M" first="Mandar S." last="Jog">Mandar S. Jog</name><affiliation><mods:affiliation>Movement Disorders Clinic, London Health Sciences Centre, London, United Kingdom</mods:affiliation></affiliation></author><author><name sortKey="Grimes, David A" sort="Grimes, David A" uniqKey="Grimes D" first="David A." last="Grimes">David A. Grimes</name><affiliation><mods:affiliation>Department of Medicine, Division of Neurology, Ottawa Hospital, Ottawa, Ontario, Canada</mods:affiliation></affiliation></author><author><name sortKey="Marras, Connie" sort="Marras, Connie" uniqKey="Marras C" first="Connie" last="Marras">Connie Marras</name><affiliation><mods:affiliation>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</mods:affiliation></affiliation></author><author><name sortKey="Lang, Anthony E" sort="Lang, Anthony E" uniqKey="Lang A" first="Anthony E." last="Lang">Anthony E. 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Small‐scale studies have suggested that persons born in the spring may be at higher risk of developing Parkinson's disease (PD) late in life. There have also been suggestions that there are clusters of PD birth dates in the years of major influenza pandemics. To determine whether there is any seasonal variation in the birth dates of PD patients, we examined birth dates of 8,168 PD patients collected from subspecialty movement disorder clinics across Canada. Patterns of seasonality of birth were examined and compared with the general Canadian population. In addition, we compared counts of patients born in the years of major influenza pandemics with the number born in the surrounding years. We found no evidence of systematic seasonal variation in PD incidence by birth date, or of clustering of birth dates during influenza pandemic years in PD patients. © 2006 Movement Disorder Society</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Ronald B. Postuma MD</name><affiliations><json:string>Department of Neurology, McGill University, Montreal General Hospital, Montreal, Quebec, Canada</json:string><json:string>Department of Neurology, L7‐305 Montreal General Hospital, 1650 Cedar Ave., Montreal, Quebec, Canada H3G 1A4</json:string></affiliations></json:item><json:item><name>Christina Wolfson PhD</name><affiliations><json:string>Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada</json:string></affiliations></json:item><json:item><name>Ali Rajput MD</name><affiliations><json:string>University of Saskatchewan, Saskatoon, Saskatchewan, Canada</json:string></affiliations></json:item><json:item><name>A. Jon Stoessl MD</name><affiliations><json:string>University of British Columbia, Vancouver, Canada</json:string></affiliations></json:item><json:item><name>W.R. Wayne Martin MD</name><affiliations><json:string>Movement Disorder Clinic, University of Alberta, Edmonton, Alberta, Canada</json:string></affiliations></json:item><json:item><name>Oksana Suchowersky MD</name><affiliations><json:string>Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada, Canada</json:string></affiliations></json:item><json:item><name>Sylvain Chouinard MD</name><affiliations><json:string>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</json:string></affiliations></json:item><json:item><name>Michel Panisset MD</name><affiliations><json:string>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</json:string></affiliations></json:item><json:item><name>Mandar S. Jog MD</name><affiliations><json:string>Movement Disorders Clinic, London Health Sciences Centre, London, United Kingdom</json:string></affiliations></json:item><json:item><name>David A. Grimes MD</name><affiliations><json:string>Department of Medicine, Division of Neurology, Ottawa Hospital, Ottawa, Ontario, Canada</json:string></affiliations></json:item><json:item><name>Connie Marras MD</name><affiliations><json:string>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</json:string></affiliations></json:item><json:item><name>Anthony E. 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There have also been suggestions that there are clusters of PD birth dates in the years of major influenza pandemics. To determine whether there is any seasonal variation in the birth dates of PD patients, we examined birth dates of 8,168 PD patients collected from subspecialty movement disorder clinics across Canada. Patterns of seasonality of birth were examined and compared with the general Canadian population. In addition, we compared counts of patients born in the years of major influenza pandemics with the number born in the surrounding years. 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Jon</forename><surname>Stoessl</surname></persName><roleName type="degree">MD</roleName><affiliation>University of British Columbia, Vancouver, Canada</affiliation></author><author xml:id="author-5"><persName><forename type="first">W.R. Wayne</forename><surname>Martin</surname></persName><roleName type="degree">MD</roleName><affiliation>Movement Disorder Clinic, University of Alberta, Edmonton, Alberta, Canada</affiliation></author><author xml:id="author-6"><persName><forename type="first">Oksana</forename><surname>Suchowersky</surname></persName><roleName type="degree">MD</roleName><affiliation>Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada, Canada</affiliation></author><author xml:id="author-7"><persName><forename type="first">Sylvain</forename><surname>Chouinard</surname></persName><roleName type="degree">MD</roleName><affiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</affiliation></author><author xml:id="author-8"><persName><forename type="first">Michel</forename><surname>Panisset</surname></persName><roleName type="degree">MD</roleName><affiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</affiliation></author><author xml:id="author-9"><persName><forename type="first">Mandar S.</forename><surname>Jog</surname></persName><roleName type="degree">MD</roleName><affiliation>Movement Disorders Clinic, London Health Sciences Centre, London, United Kingdom</affiliation></author><author xml:id="author-10"><persName><forename type="first">David A.</forename><surname>Grimes</surname></persName><roleName type="degree">MD</roleName><affiliation>Department of Medicine, Division of Neurology, Ottawa Hospital, Ottawa, Ontario, Canada</affiliation></author><author xml:id="author-11"><persName><forename type="first">Connie</forename><surname>Marras</surname></persName><roleName type="degree">MD</roleName><affiliation>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</affiliation></author><author xml:id="author-12"><persName><forename type="first">Anthony E.</forename><surname>Lang</surname></persName><roleName type="degree">MD</roleName><affiliation>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</affiliation></author></analytic><monogr><title level="j">Movement Disorders</title><title level="j" type="abbrev">Mov. 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Small‐scale studies have suggested that persons born in the spring may be at higher risk of developing Parkinson's disease (PD) late in life. There have also been suggestions that there are clusters of PD birth dates in the years of major influenza pandemics. To determine whether there is any seasonal variation in the birth dates of PD patients, we examined birth dates of 8,168 PD patients collected from subspecialty movement disorder clinics across Canada. Patterns of seasonality of birth were examined and compared with the general Canadian population. In addition, we compared counts of patients born in the years of major influenza pandemics with the number born in the surrounding years. We found no evidence of systematic seasonal variation in PD incidence by birth date, or of clustering of birth dates during influenza pandemic years in PD patients. © 2006 Movement Disorder Society</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>Parkinson's disease</term></item><item><term>epidemiology</term></item><item><term>seasonal variation</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article-category</head><item><term>Research Article</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2006-05-31">Received</change><change when="2006-09-07">Registration</change><change when="2007-06-15">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api-v5.istex.fr/document/ECA57887B0D85D104B85E9FA8D52C1E62A4B6565/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Wiley Subscription Services, Inc., A Wiley Company</publisherName><publisherLoc>Hoboken</publisherLoc></publisherInfo><doi registered="yes">10.1002/(ISSN)1531-8257</doi><issn type="print">0885-3185</issn><issn type="electronic">1531-8257</issn><idGroup><id type="product" value="MDS"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="MOVEMENT DISORDERS">Movement Disorders</title><title type="short">Mov. Disord.</title></titleGroup></publicationMeta><publicationMeta level="part" position="80"><doi origin="wiley" registered="yes">10.1002/mds.v22:8</doi><numberingGroup><numbering type="journalVolume" number="22">22</numbering><numbering type="journalIssue">8</numbering></numberingGroup><coverDate startDate="2007-06-15">15 June 2007</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="60" status="forIssue"><doi origin="wiley" registered="yes">10.1002/mds.21272</doi><idGroup><id type="unit" value="MDS21272"></id></idGroup><countGroup><count type="pageTotal" number="5"></count></countGroup><titleGroup><title type="articleCategory">Research Article</title><title type="tocHeading1">Research Articles</title></titleGroup><copyright ownership="thirdParty">Copyright © 2007 Movement Disorder Society</copyright><eventGroup><event type="manuscriptReceived" date="2006-05-31"></event><event type="manuscriptRevised" date="2006-08-31"></event><event type="manuscriptAccepted" date="2006-09-07"></event><event type="firstOnline" date="2007-05-07"></event><event type="publishedOnlineFinalForm" date="2007-06-19"></event><event type="publishedOnlineAcceptedOrEarlyUnpaginated" date="2007-05-07"></event><event type="xmlConverted" agent="Converter:JWSART34_TO_WML3G version:2.4.7 mode:FullText source:FullText result:FullText" date="2011-02-24"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-02-02"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-31"></event></eventGroup><numberingGroup><numbering type="pageFirst">1097</numbering><numbering type="pageLast">1101</numbering></numberingGroup><correspondenceTo>Department of Neurology, L7‐305 Montreal General Hospital, 1650 Cedar Ave., Montreal, Quebec, Canada H3G 1A4</correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:MDS.MDS21272.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="1"></count><count type="tableTotal" number="1"></count><count type="referenceTotal" number="19"></count><count type="wordTotal" number="3275"></count></countGroup><titleGroup><title type="main" xml:lang="en">Is there seasonal variation in risk of Parkinson's disease?</title><title type="short" xml:lang="en">Seasonal Variation in PD Risk</title></titleGroup><creators><creator xml:id="au1" creatorRole="author" affiliationRef="#af1" corresponding="yes"><personName><givenNames>Ronald B.</givenNames><familyName>Postuma</familyName><degrees>MD</degrees></personName><contactDetails><email>ron.postuma@muhc.mcgill.ca</email></contactDetails></creator><creator xml:id="au2" creatorRole="author" affiliationRef="#af2"><personName><givenNames>Christina</givenNames><familyName>Wolfson</familyName><degrees>PhD</degrees></personName></creator><creator xml:id="au3" creatorRole="author" affiliationRef="#af3"><personName><givenNames>Ali</givenNames><familyName>Rajput</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au4" creatorRole="author" affiliationRef="#af4"><personName><givenNames>A. Jon</givenNames><familyName>Stoessl</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au5" creatorRole="author" affiliationRef="#af5"><personName><givenNames>W.R. Wayne</givenNames><familyName>Martin</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au6" creatorRole="author" affiliationRef="#af6"><personName><givenNames>Oksana</givenNames><familyName>Suchowersky</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au7" creatorRole="author" affiliationRef="#af7"><personName><givenNames>Sylvain</givenNames><familyName>Chouinard</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au8" creatorRole="author" affiliationRef="#af7"><personName><givenNames>Michel</givenNames><familyName>Panisset</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au9" creatorRole="author" affiliationRef="#af8"><personName><givenNames>Mandar S.</givenNames><familyName>Jog</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au10" creatorRole="author" affiliationRef="#af9"><personName><givenNames>David A.</givenNames><familyName>Grimes</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au11" creatorRole="author" affiliationRef="#af10"><personName><givenNames>Connie</givenNames><familyName>Marras</familyName><degrees>MD</degrees></personName></creator><creator xml:id="au12" creatorRole="author" affiliationRef="#af10"><personName><givenNames>Anthony E.</givenNames><familyName>Lang</familyName><degrees>MD</degrees></personName></creator></creators><affiliationGroup><affiliation xml:id="af1" countryCode="CA" type="organization"><unparsedAffiliation>Department of Neurology, McGill University, Montreal General Hospital, Montreal, Quebec, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af2" countryCode="CA" type="organization"><unparsedAffiliation>Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af3" countryCode="CA" type="organization"><unparsedAffiliation>University of Saskatchewan, Saskatoon, Saskatchewan, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af4" countryCode="CA" type="organization"><unparsedAffiliation>University of British Columbia, Vancouver, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af5" countryCode="CA" type="organization"><unparsedAffiliation>Movement Disorder Clinic, University of Alberta, Edmonton, Alberta, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af6" countryCode="CA" type="organization"><unparsedAffiliation>Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af7" countryCode="CA" type="organization"><unparsedAffiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af8" countryCode="GB" type="organization"><unparsedAffiliation>Movement Disorders Clinic, London Health Sciences Centre, London, United Kingdom</unparsedAffiliation></affiliation><affiliation xml:id="af9" countryCode="CA" type="organization"><unparsedAffiliation>Department of Medicine, Division of Neurology, Ottawa Hospital, Ottawa, Ontario, Canada</unparsedAffiliation></affiliation><affiliation xml:id="af10" countryCode="CA" type="organization"><unparsedAffiliation>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en" type="author"><keyword xml:id="kwd1">Parkinson's disease</keyword><keyword xml:id="kwd2">epidemiology</keyword><keyword xml:id="kwd3">seasonal variation</keyword></keywordGroup><fundingInfo><fundingAgency>Fonds de la Recherche en Santé du Québec</fundingAgency></fundingInfo><supportingInformation><p> This article includes supplementary material, available online at <url href="http://www.interscience.wiley.com/jpages/0885-3185/suppmat"> http://www.interscience.wiley.com/jpages/0885–3185/suppmat </url> . </p></supportingInformation><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>Recent studies suggest that, for many adult‐onset neurological diseases, persons born at a certain time of year are at higher risk of the disease. Small‐scale studies have suggested that persons born in the spring may be at higher risk of developing Parkinson's disease (PD) late in life. There have also been suggestions that there are clusters of PD birth dates in the years of major influenza pandemics. To determine whether there is any seasonal variation in the birth dates of PD patients, we examined birth dates of 8,168 PD patients collected from subspecialty movement disorder clinics across Canada. Patterns of seasonality of birth were examined and compared with the general Canadian population. In addition, we compared counts of patients born in the years of major influenza pandemics with the number born in the surrounding years. We found no evidence of systematic seasonal variation in PD incidence by birth date, or of clustering of birth dates during influenza pandemic years in PD patients. © 2006 Movement Disorder Society</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Is there seasonal variation in risk of Parkinson's disease?</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Seasonal Variation in PD Risk</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Is there seasonal variation in risk of Parkinson's disease?</title></titleInfo><name type="personal"><namePart type="given">Ronald B.</namePart><namePart type="family">Postuma</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Department of Neurology, McGill University, Montreal General Hospital, Montreal, Quebec, Canada</affiliation><affiliation>Department of Neurology, L7‐305 Montreal General Hospital, 1650 Cedar Ave., Montreal, Quebec, Canada H3G 1A4</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Christina</namePart><namePart type="family">Wolfson</namePart><namePart type="termsOfAddress">PhD</namePart><affiliation>Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Ali</namePart><namePart type="family">Rajput</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>University of Saskatchewan, Saskatoon, Saskatchewan, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A. Jon</namePart><namePart type="family">Stoessl</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>University of British Columbia, Vancouver, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">W.R. Wayne</namePart><namePart type="family">Martin</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Movement Disorder Clinic, University of Alberta, Edmonton, Alberta, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Oksana</namePart><namePart type="family">Suchowersky</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Sylvain</namePart><namePart type="family">Chouinard</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Michel</namePart><namePart type="family">Panisset</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Centre Hospitalier Universitaire de Montréal, Montreal, Canada, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Mandar S.</namePart><namePart type="family">Jog</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Movement Disorders Clinic, London Health Sciences Centre, London, United Kingdom</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">David A.</namePart><namePart type="family">Grimes</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Department of Medicine, Division of Neurology, Ottawa Hospital, Ottawa, Ontario, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Connie</namePart><namePart type="family">Marras</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Anthony E.</namePart><namePart type="family">Lang</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Morton and Gloria Shulman Movement Disorders Center, Toronto Western Hospital, Toronto, Ontario, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><place><placeTerm type="text">Hoboken</placeTerm></place><dateIssued encoding="w3cdtf">2007-06-15</dateIssued><dateCaptured encoding="w3cdtf">2006-05-31</dateCaptured><dateValid encoding="w3cdtf">2006-09-07</dateValid><copyrightDate encoding="w3cdtf">2007</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">1</extent><extent unit="tables">1</extent><extent unit="references">19</extent><extent unit="words">3275</extent></physicalDescription><abstract lang="en">Recent studies suggest that, for many adult‐onset neurological diseases, persons born at a certain time of year are at higher risk of the disease. Small‐scale studies have suggested that persons born in the spring may be at higher risk of developing Parkinson's disease (PD) late in life. There have also been suggestions that there are clusters of PD birth dates in the years of major influenza pandemics. To determine whether there is any seasonal variation in the birth dates of PD patients, we examined birth dates of 8,168 PD patients collected from subspecialty movement disorder clinics across Canada. Patterns of seasonality of birth were examined and compared with the general Canadian population. In addition, we compared counts of patients born in the years of major influenza pandemics with the number born in the surrounding years. We found no evidence of systematic seasonal variation in PD incidence by birth date, or of clustering of birth dates during influenza pandemic years in PD patients. © 2006 Movement Disorder Society</abstract><note type="funding">Fonds de la Recherche en Santé du Québec</note><subject lang="en"><genre>keywords</genre><topic>Parkinson's disease</topic><topic>epidemiology</topic><topic>seasonal variation</topic></subject><relatedItem type="host"><titleInfo><title>Movement Disorders</title></titleInfo><titleInfo type="abbreviated"><title>Mov. Disord.</title></titleInfo><genre type="journal">journal</genre><note type="content"> This article includes supplementary material, available online at http://www.interscience.wiley.com/jpages/0885–3185/suppmat .</note><subject><genre>article-category</genre><topic>Research Article</topic></subject><identifier type="ISSN">0885-3185</identifier><identifier type="eISSN">1531-8257</identifier><identifier type="DOI">10.1002/(ISSN)1531-8257</identifier><identifier type="PublisherID">MDS</identifier><part><date>2007</date><detail type="volume"><caption>vol.</caption><number>22</number></detail><detail type="issue"><caption>no.</caption><number>8</number></detail><extent unit="pages"><start>1097</start><end>1101</end><total>5</total></extent></part></relatedItem><identifier type="istex">ECA57887B0D85D104B85E9FA8D52C1E62A4B6565</identifier><identifier type="DOI">10.1002/mds.21272</identifier><identifier type="ArticleID">MDS21272</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2007 Movement Disorder Society</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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