The Relationship Between 2009 Pandemic H1N1 Influenza During Pregnancy and Preterm Birth: A Population-based Cohort Study.
Identifieur interne : 000038 ( Main/Exploration ); précédent : 000037; suivant : 000039The Relationship Between 2009 Pandemic H1N1 Influenza During Pregnancy and Preterm Birth: A Population-based Cohort Study.
Auteurs : Deshayne B. Fell ; Robert W. Platt ; Olga Basso ; Kumanan Wilson ; Jay S. Kaufman ; David L. Buckeridge ; Jeffrey C. KwongSource :
- Epidemiology (Cambridge, Mass.) [ 1531-5487 ] ; 2018.
Descripteurs français
- KwdFr :
- Adulte, Comorbidité, Complications de la grossesse et maladies infectieuses (virologie), Complications de la grossesse et maladies infectieuses (épidémiologie), Enregistrements, Facteurs de risque, Femelle, Grippe humaine (virologie), Grippe humaine (épidémiologie), Grossesse, Humains, Jeune adulte, Modèles de hasards proportionnels, Naissance prématurée (épidémiologie), Nouveau-né, Ontario (épidémiologie), Pandémies, Sous-type H1N1 du virus de la grippe A, Troisième trimestre de grossesse, Études de cohortes, Études rétrospectives.
- MESH :
- virologie : Complications de la grossesse et maladies infectieuses, Grippe humaine.
- épidémiologie : Complications de la grossesse et maladies infectieuses, Grippe humaine, Naissance prématurée, Ontario.
- Adulte, Comorbidité, Enregistrements, Facteurs de risque, Femelle, Grossesse, Humains, Jeune adulte, Modèles de hasards proportionnels, Nouveau-né, Pandémies, Sous-type H1N1 du virus de la grippe A, Troisième trimestre de grossesse, Études de cohortes, Études rétrospectives.
English descriptors
- KwdEn :
- Adult, Cohort Studies, Comorbidity, Female, Humans, Infant, Newborn, Influenza A Virus, H1N1 Subtype, Influenza, Human (epidemiology), Influenza, Human (virology), Ontario (epidemiology), Pandemics, Pregnancy, Pregnancy Complications, Infectious (epidemiology), Pregnancy Complications, Infectious (virology), Pregnancy Trimester, Third, Premature Birth (epidemiology), Proportional Hazards Models, Registries, Retrospective Studies, Risk Factors, Young Adult.
- MESH :
- epidemiology : Influenza, Human, Ontario, Pregnancy Complications, Infectious, Premature Birth.
- virology : Influenza, Human, Pregnancy Complications, Infectious.
- Adult, Cohort Studies, Comorbidity, Female, Humans, Infant, Newborn, Influenza A Virus, H1N1 Subtype, Pandemics, Pregnancy, Pregnancy Trimester, Third, Proportional Hazards Models, Registries, Retrospective Studies, Risk Factors, Young Adult.
Abstract
BACKGROUND
Previous studies of maternal influenza illness and preterm birth have yielded inconsistent results. Our objective was to assess the association between 2009 pandemic H1N1 (pH1N1) influenza during pregnancy and preterm birth in a large obstetrical population.
METHODS
We linked a province-wide birth registry with health administrative databases to identify influenza-coded hospitalizations, emergency department visits, or physician visits among pregnant women during the 2009 H1N1 pandemic (our proxy for clinical pH1N1 influenza illness). Using Cox regression, we estimated adjusted hazard ratios (aHR) for preterm birth and spontaneous preterm birth treating influenza as a time-varying exposure.
RESULTS
Among 192,082 women with a singleton live birth, 2,925 (1.5%) had an influenza-coded health care encounter during the 2009 H1N1 pandemic. Compared with unexposed pregnancy time, there was no association between exposure to the pandemic, with or without clinical influenza illness, and preterm birth (no pH1N1 diagnosis: aHR = 1.0; 95% confidence interval [CI] = 0.98, 1.1; pH1N1 diagnosis: aHR = 1.0; 95% CI = 0.88, 1.2). Among women with preexisting medical conditions, influenza was associated with increased preterm birth (aHR = 1.5; 95% CI = 1.1, 2.2) and spontaneous preterm birth (aHR = 1.7; 95% CI = 1.1, 2.6), and these associations were strongest in the third trimester and when data were analyzed to allow for a transient acute effect of influenza.
CONCLUSIONS
In the general obstetrical population, there was no association between pH1N1 influenza illness and preterm birth, but women with preexisting medical conditions known to increase the risk of influenza-associated morbidity were at elevated risk.
DOI: 10.1097/EDE.0000000000000753
PubMed: 28930786
Affiliations:
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Kaufman</name></author><author><name sortKey="Buckeridge, David L" sort="Buckeridge, David L" uniqKey="Buckeridge D" first="David L" last="Buckeridge">David L. Buckeridge</name></author><author><name sortKey="Kwong, Jeffrey C" sort="Kwong, Jeffrey C" uniqKey="Kwong J" first="Jeffrey C" last="Kwong">Jeffrey C. Kwong</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2018">2018</date><idno type="RBID">pubmed:28930786</idno><idno type="pmid">28930786</idno><idno type="doi">10.1097/EDE.0000000000000753</idno><idno type="wicri:Area/Main/Corpus">000081</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000081</idno><idno type="wicri:Area/Main/Curation">000081</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000081</idno><idno type="wicri:Area/Main/Exploration">000081</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The Relationship Between 2009 Pandemic H1N1 Influenza During Pregnancy and Preterm Birth: A Population-based Cohort Study.</title><author><name sortKey="Fell, Deshayne B" sort="Fell, Deshayne B" uniqKey="Fell D" first="Deshayne B" last="Fell">Deshayne B. Fell</name></author><author><name sortKey="Platt, Robert W" sort="Platt, Robert W" uniqKey="Platt R" first="Robert W" last="Platt">Robert W. Platt</name></author><author><name sortKey="Basso, Olga" sort="Basso, Olga" uniqKey="Basso O" first="Olga" last="Basso">Olga Basso</name></author><author><name sortKey="Wilson, Kumanan" sort="Wilson, Kumanan" uniqKey="Wilson K" first="Kumanan" last="Wilson">Kumanan Wilson</name></author><author><name sortKey="Kaufman, Jay S" sort="Kaufman, Jay S" uniqKey="Kaufman J" first="Jay S" last="Kaufman">Jay S. Kaufman</name></author><author><name sortKey="Buckeridge, David L" sort="Buckeridge, David L" uniqKey="Buckeridge D" first="David L" last="Buckeridge">David L. Buckeridge</name></author><author><name sortKey="Kwong, Jeffrey C" sort="Kwong, Jeffrey C" uniqKey="Kwong J" first="Jeffrey C" last="Kwong">Jeffrey C. Kwong</name></author></analytic><series><title level="j">Epidemiology (Cambridge, Mass.)</title><idno type="eISSN">1531-5487</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Cohort Studies</term><term>Comorbidity</term><term>Female</term><term>Humans</term><term>Infant, Newborn</term><term>Influenza A Virus, H1N1 Subtype</term><term>Influenza, Human (epidemiology)</term><term>Influenza, Human (virology)</term><term>Ontario (epidemiology)</term><term>Pandemics</term><term>Pregnancy</term><term>Pregnancy Complications, Infectious (epidemiology)</term><term>Pregnancy Complications, Infectious (virology)</term><term>Pregnancy Trimester, Third</term><term>Premature Birth (epidemiology)</term><term>Proportional Hazards Models</term><term>Registries</term><term>Retrospective Studies</term><term>Risk Factors</term><term>Young Adult</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte</term><term>Comorbidité</term><term>Complications de la grossesse et maladies infectieuses (virologie)</term><term>Complications de la grossesse et maladies infectieuses (épidémiologie)</term><term>Enregistrements</term><term>Facteurs de risque</term><term>Femelle</term><term>Grippe humaine (virologie)</term><term>Grippe humaine (épidémiologie)</term><term>Grossesse</term><term>Humains</term><term>Jeune adulte</term><term>Modèles de hasards proportionnels</term><term>Naissance prématurée (épidémiologie)</term><term>Nouveau-né</term><term>Ontario (épidémiologie)</term><term>Pandémies</term><term>Sous-type H1N1 du virus de la grippe A</term><term>Troisième trimestre de grossesse</term><term>Études de cohortes</term><term>Études rétrospectives</term></keywords><keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Influenza, Human</term><term>Ontario</term><term>Pregnancy Complications, Infectious</term><term>Premature Birth</term></keywords><keywords scheme="MESH" qualifier="virologie" xml:lang="fr"><term>Complications de la grossesse et maladies infectieuses</term><term>Grippe humaine</term></keywords><keywords scheme="MESH" qualifier="virology" xml:lang="en"><term>Influenza, Human</term><term>Pregnancy Complications, Infectious</term></keywords><keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr"><term>Complications de la grossesse et maladies infectieuses</term><term>Grippe humaine</term><term>Naissance prématurée</term><term>Ontario</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Cohort Studies</term><term>Comorbidity</term><term>Female</term><term>Humans</term><term>Infant, Newborn</term><term>Influenza A Virus, H1N1 Subtype</term><term>Pandemics</term><term>Pregnancy</term><term>Pregnancy Trimester, Third</term><term>Proportional Hazards Models</term><term>Registries</term><term>Retrospective Studies</term><term>Risk Factors</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Comorbidité</term><term>Enregistrements</term><term>Facteurs de risque</term><term>Femelle</term><term>Grossesse</term><term>Humains</term><term>Jeune adulte</term><term>Modèles de hasards proportionnels</term><term>Nouveau-né</term><term>Pandémies</term><term>Sous-type H1N1 du virus de la grippe A</term><term>Troisième trimestre de grossesse</term><term>Études de cohortes</term><term>Études rétrospectives</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b></p><p>Previous studies of maternal influenza illness and preterm birth have yielded inconsistent results. Our objective was to assess the association between 2009 pandemic H1N1 (pH1N1) influenza during pregnancy and preterm birth in a large obstetrical population.</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>We linked a province-wide birth registry with health administrative databases to identify influenza-coded hospitalizations, emergency department visits, or physician visits among pregnant women during the 2009 H1N1 pandemic (our proxy for clinical pH1N1 influenza illness). Using Cox regression, we estimated adjusted hazard ratios (aHR) for preterm birth and spontaneous preterm birth treating influenza as a time-varying exposure.</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>Among 192,082 women with a singleton live birth, 2,925 (1.5%) had an influenza-coded health care encounter during the 2009 H1N1 pandemic. Compared with unexposed pregnancy time, there was no association between exposure to the pandemic, with or without clinical influenza illness, and preterm birth (no pH1N1 diagnosis: aHR = 1.0; 95% confidence interval [CI] = 0.98, 1.1; pH1N1 diagnosis: aHR = 1.0; 95% CI = 0.88, 1.2). Among women with preexisting medical conditions, influenza was associated with increased preterm birth (aHR = 1.5; 95% CI = 1.1, 2.2) and spontaneous preterm birth (aHR = 1.7; 95% CI = 1.1, 2.6), and these associations were strongest in the third trimester and when data were analyzed to allow for a transient acute effect of influenza.</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b></p><p>In the general obstetrical population, there was no association between pH1N1 influenza illness and preterm birth, but women with preexisting medical conditions known to increase the risk of influenza-associated morbidity were at elevated risk.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28930786</PMID><DateCompleted><Year>2018</Year><Month>07</Month><Day>24</Day></DateCompleted><DateRevised><Year>2018</Year><Month>08</Month><Day>01</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1531-5487</ISSN><JournalIssue CitedMedium="Internet"><Volume>29</Volume><Issue>1</Issue><PubDate><Year>2018</Year><Month>01</Month></PubDate></JournalIssue><Title>Epidemiology (Cambridge, Mass.)</Title><ISOAbbreviation>Epidemiology</ISOAbbreviation></Journal><ArticleTitle>The Relationship Between 2009 Pandemic H1N1 Influenza During Pregnancy and Preterm Birth: A Population-based Cohort Study.</ArticleTitle><Pagination><MedlinePgn>107-116</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1097/EDE.0000000000000753</ELocationID><Abstract><AbstractText Label="BACKGROUND">Previous studies of maternal influenza illness and preterm birth have yielded inconsistent results. Our objective was to assess the association between 2009 pandemic H1N1 (pH1N1) influenza during pregnancy and preterm birth in a large obstetrical population.</AbstractText><AbstractText Label="METHODS">We linked a province-wide birth registry with health administrative databases to identify influenza-coded hospitalizations, emergency department visits, or physician visits among pregnant women during the 2009 H1N1 pandemic (our proxy for clinical pH1N1 influenza illness). Using Cox regression, we estimated adjusted hazard ratios (aHR) for preterm birth and spontaneous preterm birth treating influenza as a time-varying exposure.</AbstractText><AbstractText Label="RESULTS">Among 192,082 women with a singleton live birth, 2,925 (1.5%) had an influenza-coded health care encounter during the 2009 H1N1 pandemic. Compared with unexposed pregnancy time, there was no association between exposure to the pandemic, with or without clinical influenza illness, and preterm birth (no pH1N1 diagnosis: aHR = 1.0; 95% confidence interval [CI] = 0.98, 1.1; pH1N1 diagnosis: aHR = 1.0; 95% CI = 0.88, 1.2). Among women with preexisting medical conditions, influenza was associated with increased preterm birth (aHR = 1.5; 95% CI = 1.1, 2.2) and spontaneous preterm birth (aHR = 1.7; 95% CI = 1.1, 2.6), and these associations were strongest in the third trimester and when data were analyzed to allow for a transient acute effect of influenza.</AbstractText><AbstractText Label="CONCLUSIONS">In the general obstetrical population, there was no association between pH1N1 influenza illness and preterm birth, but women with preexisting medical conditions known to increase the risk of influenza-associated morbidity were at elevated risk.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fell</LastName><ForeName>Deshayne B</ForeName><Initials>DB</Initials></Author><Author ValidYN="Y"><LastName>Platt</LastName><ForeName>Robert W</ForeName><Initials>RW</Initials></Author><Author 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PubStatus="entrez"><Year>2017</Year><Month>9</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28930786</ArticleId><ArticleId IdType="doi">10.1097/EDE.0000000000000753</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list></list><tree><noCountry><name sortKey="Basso, Olga" sort="Basso, Olga" uniqKey="Basso O" first="Olga" last="Basso">Olga Basso</name><name sortKey="Buckeridge, David L" sort="Buckeridge, David L" uniqKey="Buckeridge D" first="David L" last="Buckeridge">David L. Buckeridge</name><name sortKey="Fell, Deshayne B" sort="Fell, Deshayne B" uniqKey="Fell D" first="Deshayne B" last="Fell">Deshayne B. Fell</name><name sortKey="Kaufman, Jay S" sort="Kaufman, Jay S" uniqKey="Kaufman J" first="Jay S" last="Kaufman">Jay S. Kaufman</name><name sortKey="Kwong, Jeffrey C" sort="Kwong, Jeffrey C" uniqKey="Kwong J" first="Jeffrey C" last="Kwong">Jeffrey C. Kwong</name><name sortKey="Platt, Robert W" sort="Platt, Robert W" uniqKey="Platt R" first="Robert W" last="Platt">Robert W. Platt</name><name sortKey="Wilson, Kumanan" sort="Wilson, Kumanan" uniqKey="Wilson K" first="Kumanan" last="Wilson">Kumanan Wilson</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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