Population-based study of cesarean section after in vitro fertilization in Australia

Sullivan, EA; Chapman, MG; Wang, YA; Adamson, GD

Population-based study of cesarean section after in vitro fertilization in Australia

Sullivan, EA

Chapman, MG Wang, YA

Adamson, GD

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Publication Type:: Journal Article
Citation:: Birth, 2010, 37 (3), pp. 184 - 191
Issue Date:: 2010-09-01

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Field	Value	Language
dc.contributor.author	Sullivan, EA https://orcid.org/0000-0002-8718-2753	en_US
dc.contributor.author	Chapman, MG	en_US
dc.contributor.author	Wang, YA https://orcid.org/0000-0002-3656-4284	en_US
dc.contributor.author	Adamson, GD	en_US
dc.date.issued	2010-09-01	en_US
dc.identifier.citation	Birth, 2010, 37 (3), pp. 184 - 191	en_US
dc.identifier.issn	0730-7659	en_US
dc.identifier.uri	http://hdl.handle.net/10453/28504
dc.description.abstract	Background: Decisions about method of birth should be evidence based. In Australia, the rising rate of cesarean section has not been limited to births after spontaneous conception. This study aimed to investigate cesarean section among women giving birth after in vitro fertilization (IVF). Methods: Retrospective population-based study was conducted using national registry data on IVF treatment. The study included 17,019 women who underwent IVF treatment during 2003 to 2005 and a national comparison population of women who gave birth in Australia. The outcome measure was cesarean section. Results: Crude rate of cesarean section was 50.1 percent versus 28.9 percent for all other births. Single embryo transfer was associated with the lowest (40.7%) rate of cesarean section. Donor status and twin gestation were associated with significantly higher rates of cesarean section (autologous, 49.0% vs donor, 74.9%; AOR: 2.20, 95% CI: 1.80, 2.69) and (singleton, 45.0% vs twin gestations, 75.7%; AOR: 3.81, 95% CI: 3.46, 4.20). The gestation-specific rate (60.1%) of cesarean section peaked at 38 weeks for singleton term pregnancies. Compared with other women, cesarean section rates for assisted reproductive technology term singletons (27.8% vs 43.8%, OR: 2.02 [95% CI: 1.95-2.10]) and twins (62.0% vs 75.7%, OR: 1.92 [95% CI: 1.74-2.11]) were significantly higher. Conclusions: Rates for cesarean section appear to be disproportionately high in term singleton births after assisted reproductive technology. Vaginal birth should be supported and the indications for cesarean section evidence based. (BIRTH 37:3 September 2010) © 2010, Wiley Periodicals, Inc.	en_US
dc.relation.ispartof	Birth	en_US
dc.relation.isbasedon	10.1111/j.1523-536X.2010.00405.x	en_US
dc.subject.classification	Obstetrics & Reproductive Medicine	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Natural Childbirth	en_US
dc.subject.mesh	Fertilization in Vitro	en_US
dc.subject.mesh	Oocyte Donation	en_US
dc.subject.mesh	Cesarean Section	en_US
dc.subject.mesh	Registries	en_US
dc.subject.mesh	Regression Analysis	en_US
dc.subject.mesh	Retrospective Studies	en_US
dc.subject.mesh	Fertilization	en_US
dc.subject.mesh	Pregnancy	en_US
dc.subject.mesh	Twins	en_US
dc.subject.mesh	Adult	en_US
dc.subject.mesh	Middle Aged	en_US
dc.subject.mesh	Australia	en_US
dc.subject.mesh	Female	en_US
dc.subject.mesh	Evidence-Based Practice	en_US
dc.title	Population-based study of cesarean section after in vitro fertilization in Australia	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	37	en_US
utslib.for	1117 Public Health and Health Services	en_US
utslib.for	11 Medical and Health Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Faculty of Health/Public Health
pubs.organisational-group	/University of Technology Sydney/Strength - CHSP - Health Services and Practice
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	37	en_US

Abstract:

Background: Decisions about method of birth should be evidence based. In Australia, the rising rate of cesarean section has not been limited to births after spontaneous conception. This study aimed to investigate cesarean section among women giving birth after in vitro fertilization (IVF). Methods: Retrospective population-based study was conducted using national registry data on IVF treatment. The study included 17,019 women who underwent IVF treatment during 2003 to 2005 and a national comparison population of women who gave birth in Australia. The outcome measure was cesarean section. Results: Crude rate of cesarean section was 50.1 percent versus 28.9 percent for all other births. Single embryo transfer was associated with the lowest (40.7%) rate of cesarean section. Donor status and twin gestation were associated with significantly higher rates of cesarean section (autologous, 49.0% vs donor, 74.9%; AOR: 2.20, 95% CI: 1.80, 2.69) and (singleton, 45.0% vs twin gestations, 75.7%; AOR: 3.81, 95% CI: 3.46, 4.20). The gestation-specific rate (60.1%) of cesarean section peaked at 38 weeks for singleton term pregnancies. Compared with other women, cesarean section rates for assisted reproductive technology term singletons (27.8% vs 43.8%, OR: 2.02 [95% CI: 1.95-2.10]) and twins (62.0% vs 75.7%, OR: 1.92 [95% CI: 1.74-2.11]) were significantly higher. Conclusions: Rates for cesarean section appear to be disproportionately high in term singleton births after assisted reproductive technology. Vaginal birth should be supported and the indications for cesarean section evidence based. (BIRTH 37:3 September 2010) © 2010, Wiley Periodicals, Inc.

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http://hdl.handle.net/10453/28504