Influenza-attributable deaths, Canada 1990-1999.
Identifieur interne : 000881 ( Main/Corpus ); précédent : 000880; suivant : 000882Influenza-attributable deaths, Canada 1990-1999.
Auteurs : D L Schanzer ; T W S. Tam ; J M Langley ; B T WinchesterSource :
- Epidemiology and infection [ 0950-2688 ] ; 2007.
English descriptors
- KwdEn :
- MESH :
- geographic , epidemiology : Canada.
- mortality : Influenza, Human.
- Age Distribution, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged.
Abstract
The number of deaths attributable to influenza is believed to be considerably higher than the number certified by vital statistics registration as due to influenza. Weekly mortality data for Canada from the 1989/1990 to the 1998/1999 influenza seasons were analysed by cause of death, age group, and place of death to estimate the impact of influenza on mortality. A Poisson regression model was found to accurately predict all-cause, as well as cause-specific mortality, as a function of influenza-certified deaths, after controlling for seasonality, and trend. Influenza-attributable deaths were calculated as predicted less baseline-predicted deaths. In summary, throughout the 1990s there were on average just under 4000 deaths attributable to influenza annually (for an influenza-attributable mortality rate of 13/100,000 persons), varying from no detectable excess mortality for the 1990/1991 influenza season, to 6000-8000 influenza-attributable deaths for the more severe influenza seasons of 1997/1998 and 1998/1999. On average, 8% (95% CI 7-10) of influenza-attributable deaths were certified as influenza, although this percentage varied from 4% to 12% from year to year. Only 15% of the influenza-attributable deaths were certified as pneumonia, and for all respiratory causes, 40%. Deaths were distributed over most causes. The weekly pattern of influenza-certified deaths was a good predictor of excess all-cause mortality.
DOI: 10.1017/S0950268807007923
PubMed: 17306052
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pubmed:17306052Le document en format XML
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Tam</name></author><author><name sortKey="Langley, J M" sort="Langley, J M" uniqKey="Langley J" first="J M" last="Langley">J M Langley</name></author><author><name sortKey="Winchester, B T" sort="Winchester, B T" uniqKey="Winchester B" first="B T" last="Winchester">B T Winchester</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2007">2007</date><idno type="RBID">pubmed:17306052</idno><idno type="pmid">17306052</idno><idno type="doi">10.1017/S0950268807007923</idno><idno type="wicri:Area/Main/Corpus">000881</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000881</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Influenza-attributable deaths, Canada 1990-1999.</title><author><name sortKey="Schanzer, D L" sort="Schanzer, D L" uniqKey="Schanzer D" first="D L" last="Schanzer">D L Schanzer</name><affiliation><nlm:affiliation>Centre for Infectious Disease Prevention and Control, Public Health Agency of Canada, Ottawa, Ontario, Canada. dena_schanzer@phac-aspc.gc.ca</nlm:affiliation></affiliation></author><author><name sortKey="Tam, T W S" sort="Tam, T W S" uniqKey="Tam T" first="T W S" last="Tam">T W S. Tam</name></author><author><name sortKey="Langley, J M" sort="Langley, J M" uniqKey="Langley J" first="J M" last="Langley">J M Langley</name></author><author><name sortKey="Winchester, B T" sort="Winchester, B T" uniqKey="Winchester B" first="B T" last="Winchester">B T Winchester</name></author></analytic><series><title level="j">Epidemiology and infection</title><idno type="ISSN">0950-2688</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Age Distribution</term><term>Aged</term><term>Aged, 80 and over</term><term>Canada (epidemiology)</term><term>Female</term><term>Humans</term><term>Influenza, Human (mortality)</term><term>Male</term><term>Middle Aged</term></keywords><keywords scheme="MESH" type="geographic" qualifier="epidemiology" xml:lang="en"><term>Canada</term></keywords><keywords scheme="MESH" qualifier="mortality" xml:lang="en"><term>Influenza, Human</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Age Distribution</term><term>Aged</term><term>Aged, 80 and over</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The number of deaths attributable to influenza is believed to be considerably higher than the number certified by vital statistics registration as due to influenza. Weekly mortality data for Canada from the 1989/1990 to the 1998/1999 influenza seasons were analysed by cause of death, age group, and place of death to estimate the impact of influenza on mortality. A Poisson regression model was found to accurately predict all-cause, as well as cause-specific mortality, as a function of influenza-certified deaths, after controlling for seasonality, and trend. Influenza-attributable deaths were calculated as predicted less baseline-predicted deaths. In summary, throughout the 1990s there were on average just under 4000 deaths attributable to influenza annually (for an influenza-attributable mortality rate of 13/100,000 persons), varying from no detectable excess mortality for the 1990/1991 influenza season, to 6000-8000 influenza-attributable deaths for the more severe influenza seasons of 1997/1998 and 1998/1999. On average, 8% (95% CI 7-10) of influenza-attributable deaths were certified as influenza, although this percentage varied from 4% to 12% from year to year. Only 15% of the influenza-attributable deaths were certified as pneumonia, and for all respiratory causes, 40%. Deaths were distributed over most causes. The weekly pattern of influenza-certified deaths was a good predictor of excess all-cause mortality.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17306052</PMID><DateCompleted><Year>2007</Year><Month>12</Month><Day>13</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0950-2688</ISSN><JournalIssue CitedMedium="Print"><Volume>135</Volume><Issue>7</Issue><PubDate><Year>2007</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Epidemiology and infection</Title><ISOAbbreviation>Epidemiol. Infect.</ISOAbbreviation></Journal><ArticleTitle>Influenza-attributable deaths, Canada 1990-1999.</ArticleTitle><Pagination><MedlinePgn>1109-16</MedlinePgn></Pagination><Abstract><AbstractText>The number of deaths attributable to influenza is believed to be considerably higher than the number certified by vital statistics registration as due to influenza. Weekly mortality data for Canada from the 1989/1990 to the 1998/1999 influenza seasons were analysed by cause of death, age group, and place of death to estimate the impact of influenza on mortality. A Poisson regression model was found to accurately predict all-cause, as well as cause-specific mortality, as a function of influenza-certified deaths, after controlling for seasonality, and trend. Influenza-attributable deaths were calculated as predicted less baseline-predicted deaths. In summary, throughout the 1990s there were on average just under 4000 deaths attributable to influenza annually (for an influenza-attributable mortality rate of 13/100,000 persons), varying from no detectable excess mortality for the 1990/1991 influenza season, to 6000-8000 influenza-attributable deaths for the more severe influenza seasons of 1997/1998 and 1998/1999. On average, 8% (95% CI 7-10) of influenza-attributable deaths were certified as influenza, although this percentage varied from 4% to 12% from year to year. Only 15% of the influenza-attributable deaths were certified as pneumonia, and for all respiratory causes, 40%. Deaths were distributed over most causes. The weekly pattern of influenza-certified deaths was a good predictor of excess all-cause mortality.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Schanzer</LastName><ForeName>D L</ForeName><Initials>DL</Initials><AffiliationInfo><Affiliation>Centre for Infectious Disease Prevention and Control, Public Health Agency of Canada, Ottawa, Ontario, Canada. dena_schanzer@phac-aspc.gc.ca</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tam</LastName><ForeName>T W S</ForeName><Initials>TW</Initials></Author><Author ValidYN="Y"><LastName>Langley</LastName><ForeName>J M</ForeName><Initials>JM</Initials></Author><Author ValidYN="Y"><LastName>Winchester</LastName><ForeName>B T</ForeName><Initials>BT</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2007</Year><Month>02</Month><Day>19</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Epidemiol Infect</MedlineTA><NlmUniqueID>8703737</NlmUniqueID><ISSNLinking>0950-2688</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D017677" MajorTopicYN="N">Age Distribution</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000369" MajorTopicYN="N">Aged, 80 and over</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002170" MajorTopicYN="N" Type="Geographic">Canada</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007251" MajorTopicYN="N">Influenza, Human</DescriptorName><QualifierName UI="Q000401" MajorTopicYN="Y">mortality</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>2</Month><Day>20</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>12</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>2</Month><Day>20</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17306052</ArticleId><ArticleId IdType="pii">S0950268807007923</ArticleId><ArticleId IdType="doi">10.1017/S0950268807007923</ArticleId><ArticleId IdType="pmc">PMC2870678</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Am J Epidemiol. 2004 Sep 1;160(5):492-502</Citation><ArticleIdList><ArticleId IdType="pubmed">15321847</ArticleId></ArticleIdList></Reference><Reference><Citation>N Engl J Med. 2005 Dec 15;353(24):2559-67</Citation><ArticleIdList><ArticleId IdType="pubmed">16354892</ArticleId></ArticleIdList></Reference><Reference><Citation>Epidemiology. 1997 Jul;8(4):390-5</Citation><ArticleIdList><ArticleId IdType="pubmed">9209852</ArticleId></ArticleIdList></Reference><Reference><Citation>Vaccine. 2004 Jul 29;22(21-22):2853-62</Citation><ArticleIdList><ArticleId IdType="pubmed">15246621</ArticleId></ArticleIdList></Reference><Reference><Citation>JAMA. 2003 May 21;289(19):2499-500; 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