Tuberculosis as a Risk Factor for 1918 Influenza Pandemic Outcomes.
Identifieur interne : 000073 ( PubMed/Checkpoint ); précédent : 000072; suivant : 000074Tuberculosis as a Risk Factor for 1918 Influenza Pandemic Outcomes.
Auteurs : Svenn-Erik Mamelund [Norvège] ; Jessica Dimka [États-Unis]Source :
- Tropical medicine and infectious disease [ 2414-6366 ] ; 2019.
Abstract
Tuberculosis (TB) mortality declined after the 1918 pandemic, suggesting that influenza killed those who would have died from TB. Few studies have analyzed TB as a direct risk factor for 1918 influenza morbidity and mortality by age and sex. We study the impacts of TB on influenza-like illness (% of population sick) and case fatality (% of cases dying) by age and sex through case-control comparisons of patients (N = 201) and employees (N = 97) from two Norwegian sanatoriums. Female patients, patients at Landeskogen sanatorium, and patients aged 10-39 years had significantly lower morbidity than the controls. None of the 62 sick employees died, while 15 of 84 sick patients did. The case-control difference in case fatality by sex was only significant for females at Lyster sanatorium and females at both sanatoriums combined. Non-significant case-control differences in case fatality for males were likely due to small samples. Patients 20-29 years for both sexes combined at Lyster sanatorium and at both sanatoriums combined, as well as females 20-29 years for both sanatoriums combined, had significantly higher case fatality. We conclude that TB was associated with higher case fatality, but morbidity was lower for patients than for employees. The results add to the study of interactions between bacterial and viral diseases and are relevant in preparing for pandemics in TB endemic areas.
DOI: 10.3390/tropicalmed4020074
PubMed: 31035651
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Box 4, St. Olavs Plass, 0130 Oslo, Norway. masv@oslomet.no.</nlm:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>Work Research Institute, OsloMet-Oslo Metropolitan University, PO. Box 4, St. Olavs Plass, 0130 Oslo</wicri:regionArea><placeName><settlement type="city">Oslo</settlement><region nuts="2">Østlandet</region></placeName></affiliation></author><author><name sortKey="Dimka, Jessica" sort="Dimka, Jessica" uniqKey="Dimka J" first="Jessica" last="Dimka">Jessica Dimka</name><affiliation wicri:level="4"><nlm:affiliation>Department of Anthropology, University of Pittsburgh, Pittsburgh, PA 15260, USA. jld199@pitt.edu.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Anthropology, University of Pittsburgh, Pittsburgh, PA 15260</wicri:regionArea><placeName><region type="state">Pennsylvanie</region><settlement type="city">Pittsburgh</settlement></placeName><orgName type="university">Université de Pittsburgh</orgName></affiliation></author></analytic><series><title level="j">Tropical medicine and infectious disease</title><idno type="eISSN">2414-6366</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Tuberculosis (TB) mortality declined after the 1918 pandemic, suggesting that influenza killed those who would have died from TB. Few studies have analyzed TB as a direct risk factor for 1918 influenza morbidity and mortality by age and sex. We study the impacts of TB on influenza-like illness (% of population sick) and case fatality (% of cases dying) by age and sex through case-control comparisons of patients (<i>N</i> = 201) and employees (<i>N</i> = 97) from two Norwegian sanatoriums. Female patients, patients at Landeskogen sanatorium, and patients aged 10-39 years had significantly lower morbidity than the controls. None of the 62 sick employees died, while 15 of 84 sick patients did. The case-control difference in case fatality by sex was only significant for females at Lyster sanatorium and females at both sanatoriums combined. Non-significant case-control differences in case fatality for males were likely due to small samples. Patients 20-29 years for both sexes combined at Lyster sanatorium and at both sanatoriums combined, as well as females 20-29 years for both sanatoriums combined, had significantly higher case fatality. We conclude that TB was associated with higher case fatality, but morbidity was lower for patients than for employees. The results add to the study of interactions between bacterial and viral diseases and are relevant in preparing for pandemics in TB endemic areas.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">31035651</PMID><DateRevised><Year>2020</Year><Month>02</Month><Day>25</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">2414-6366</ISSN><JournalIssue CitedMedium="Internet"><Volume>4</Volume><Issue>2</Issue><PubDate><Year>2019</Year><Month>Apr</Month><Day>29</Day></PubDate></JournalIssue><Title>Tropical medicine and infectious disease</Title><ISOAbbreviation>Trop Med Infect Dis</ISOAbbreviation></Journal><ArticleTitle>Tuberculosis as a Risk Factor for 1918 Influenza Pandemic Outcomes.</ArticleTitle><ELocationID EIdType="pii" ValidYN="Y">E74</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.3390/tropicalmed4020074</ELocationID><Abstract><AbstractText>Tuberculosis (TB) mortality declined after the 1918 pandemic, suggesting that influenza killed those who would have died from TB. Few studies have analyzed TB as a direct risk factor for 1918 influenza morbidity and mortality by age and sex. We study the impacts of TB on influenza-like illness (% of population sick) and case fatality (% of cases dying) by age and sex through case-control comparisons of patients (<i>N</i> = 201) and employees (<i>N</i> = 97) from two Norwegian sanatoriums. Female patients, patients at Landeskogen sanatorium, and patients aged 10-39 years had significantly lower morbidity than the controls. None of the 62 sick employees died, while 15 of 84 sick patients did. The case-control difference in case fatality by sex was only significant for females at Lyster sanatorium and females at both sanatoriums combined. Non-significant case-control differences in case fatality for males were likely due to small samples. Patients 20-29 years for both sexes combined at Lyster sanatorium and at both sanatoriums combined, as well as females 20-29 years for both sanatoriums combined, had significantly higher case fatality. We conclude that TB was associated with higher case fatality, but morbidity was lower for patients than for employees. The results add to the study of interactions between bacterial and viral diseases and are relevant in preparing for pandemics in TB endemic areas.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Mamelund</LastName><ForeName>Svenn-Erik</ForeName><Initials>SE</Initials><Identifier Source="ORCID">0000-0002-3980-3818</Identifier><AffiliationInfo><Affiliation>Work Research Institute, OsloMet-Oslo Metropolitan University, PO. Box 4, St. Olavs Plass, 0130 Oslo, Norway. masv@oslomet.no.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dimka</LastName><ForeName>Jessica</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Department of Anthropology, University of Pittsburgh, Pittsburgh, PA 15260, USA. jld199@pitt.edu.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2019</Year><Month>04</Month><Day>29</Day></ArticleDate></Article><MedlineJournalInfo><Country>Switzerland</Country><MedlineTA>Trop Med Infect Dis</MedlineTA><NlmUniqueID>101709042</NlmUniqueID><ISSNLinking>2414-6366</ISSNLinking></MedlineJournalInfo><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">1918 pandemic</Keyword><Keyword MajorTopicYN="N">Spanish flu</Keyword><Keyword MajorTopicYN="N">case fatality</Keyword><Keyword MajorTopicYN="N">case-control studies</Keyword><Keyword MajorTopicYN="N">historical epidemiology</Keyword><Keyword MajorTopicYN="N">morbidity</Keyword><Keyword MajorTopicYN="N">tuberculosis and influenza interactions</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2018</Year><Month>12</Month><Day>30</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2019</Year><Month>04</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2019</Year><Month>04</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>5</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2019</Year><Month>5</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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IdType="pubmed">7024434</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>Norvège</li><li>États-Unis</li></country><region><li>Pennsylvanie</li><li>Østlandet</li></region><settlement><li>Oslo</li><li>Pittsburgh</li></settlement><orgName><li>Université de Pittsburgh</li></orgName></list><tree><country name="Norvège"><region name="Østlandet"><name sortKey="Mamelund, Svenn Erik" sort="Mamelund, Svenn Erik" uniqKey="Mamelund S" first="Svenn-Erik" last="Mamelund">Svenn-Erik Mamelund</name></region></country><country name="États-Unis"><region name="Pennsylvanie"><name sortKey="Dimka, Jessica" sort="Dimka, Jessica" uniqKey="Dimka J" first="Jessica" last="Dimka">Jessica Dimka</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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