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dc.contributor.authorTessema, Gizachew
dc.contributor.authorMarinovich, Luke
dc.contributor.authorHåberg, Siri E
dc.contributor.authorGissler, Mika
dc.contributor.authorMayo, Jonathan A
dc.contributor.authorNassar, Natasha
dc.contributor.authorBall, Stephen
dc.contributor.authorBetrán, Ana Pilar
dc.contributor.authorGebremedhin, Amanuel
dc.contributor.authorde Klerk, Nick
dc.contributor.authorMagnus, Maria C
dc.contributor.authorMarston, Cicely
dc.contributor.authorRegan, Annette
dc.contributor.authorShaw, Gary M
dc.contributor.authorPadula, Amy M
dc.contributor.authorPereira, Gavin
dc.date.accessioned2023-09-07T04:25:40Z
dc.date.available2023-09-07T04:25:40Z
dc.date.issued2021
dc.identifier.citationTessema, G.A. and Marinovich, M.L. and Håberg, S.E. and Gissler, M. and Mayo, J.A. and Nassar, N. and Ball, S. et al. 2021. Interpregnancy intervals and adverse birth outcomes in high-income countries: An international cohort study. PLoS One. 16 (7): e0255000.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/93239
dc.identifier.doi10.1371/journal.pone.0255000
dc.description.abstract

BACKGROUND: Most evidence for interpregnancy interval (IPI) and adverse birth outcomes come from studies that are prone to incomplete control for confounders that vary between women. Comparing pregnancies to the same women can address this issue. METHODS: We conducted an international longitudinal cohort study of 5,521,211 births to 3,849,193 women from Australia (1980-2016), Finland (1987-2017), Norway (1980-2016) and the United States (California) (1991-2012). IPI was calculated based on the time difference between two dates-the date of birth of the first pregnancy and the date of conception of the next (index) pregnancy. We estimated associations between IPI and preterm birth (PTB), spontaneous PTB, and small-for-gestational age births (SGA) using logistic regression (between-women analyses). We also used conditional logistic regression comparing IPIs and birth outcomes in the same women (within-women analyses). Random effects meta-analysis was used to calculate pooled adjusted odds ratios (aOR). RESULTS: Compared to an IPI of 18-23 months, there was insufficient evidence for an association between IPI <6 months and overall PTB (aOR 1.08, 95% CI 0.99-1.18) and SGA (aOR 0.99, 95% CI 0.81-1.19), but increased odds of spontaneous PTB (aOR 1.38, 95% CI 1.21-1.57) in the within-women analysis. We observed elevated odds of all birth outcomes associated with IPI ≥60 months. In comparison, between-women analyses showed elevated odds of adverse birth outcomes for <12 month and >24 month IPIs. CONCLUSIONS: We found consistently elevated odds of adverse birth outcomes following long IPIs. IPI shorter than 6 months were associated with elevated risk of spontaneous PTB, but there was insufficient evidence for increased risk of other adverse birth outcomes. Current recommendations of waiting at least 24 months to conceive after a previous pregnancy, may be unnecessarily long in high-income countries.

dc.languageeng
dc.publisherPUBLIC LIBRARY SCIENCE
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1138425
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1195716
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1173991
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1067066
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1099655
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1138425
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/nhmrc/1173991
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/
dc.subjectScience & Technology
dc.subjectMultidisciplinary Sciences
dc.subjectScience & Technology - Other Topics
dc.subjectASSISTED REPRODUCTIVE TECHNOLOGY
dc.subjectIN-VITRO FERTILIZATION
dc.subjectPERINATAL OUTCOMES
dc.subjectPRETERM BIRTH
dc.subjectPREGNANCY INTERVAL
dc.subjectSUBSEQUENT RISK
dc.subjectIMPACT
dc.subjectMETAANALYSIS
dc.subjectINFANT
dc.subjectAdult
dc.subjectBirth Intervals
dc.subjectCohort Studies
dc.subjectDeveloped Countries
dc.subjectFemale
dc.subjectHumans
dc.subjectInfant, Low Birth Weight
dc.subjectInfant, Newborn
dc.subjectInfant, Small for Gestational Age
dc.subjectLongitudinal Studies
dc.subjectMaternal Age
dc.subjectPregnancy
dc.subjectPregnancy Outcome
dc.subjectPremature Birth
dc.subjectYoung Adult
dc.subjectHumans
dc.subjectPremature Birth
dc.subjectPregnancy Outcome
dc.subjectCohort Studies
dc.subjectLongitudinal Studies
dc.subjectMaternal Age
dc.subjectPregnancy
dc.subjectBirth Intervals
dc.subjectDeveloped Countries
dc.subjectAdult
dc.subjectInfant, Newborn
dc.subjectInfant, Low Birth Weight
dc.subjectInfant, Small for Gestational Age
dc.subjectFemale
dc.subjectYoung Adult
dc.titleInterpregnancy intervals and adverse birth outcomes in high-income countries: An international cohort study.
dc.typeJournal Article
dcterms.source.volume16
dcterms.source.number7
dcterms.source.issn1932-6203
dcterms.source.titlePLoS One
dc.date.updated2023-09-07T04:25:39Z
curtin.departmentCurtin School of Population Health
curtin.departmentCurtin School of Nursing
curtin.departmentOffice of the Pro Vice Chancellor Health Sciences
curtin.accessStatusOpen access
curtin.facultyFaculty of Health Sciences
curtin.contributor.orcidTessema, Gizachew [0000-0002-4784-8151]
curtin.contributor.orcidPereira, Gavin [0000-0003-3740-8117]
curtin.contributor.orcidMarinovich, Luke [0000-0002-3801-8180]
curtin.contributor.orcidRegan, Annette [0000-0002-3879-6193]
curtin.contributor.orcidBall, Stephen [0000-0002-9457-3381]
curtin.contributor.researcheridTessema, Gizachew [J-9235-2018]
curtin.contributor.researcheridPereira, Gavin [D-7136-2014]
curtin.identifier.article-numberARTN e0255000
curtin.identifier.article-numbere0255000
dcterms.source.eissn1932-6203
curtin.contributor.scopusauthoridPereira, Gavin [35091486200]
curtin.contributor.scopusauthoridRegan, Annette [25932252200]
curtin.contributor.scopusauthoridBall, Stephen [55676853700]
curtin.contributor.scopusauthoridGebremedhin, Amanuel [56412162800] [57202566187]
curtin.repositoryagreementV3


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