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Article: Transfer of two embryos instead of three will not compromise pregnancy rate but will reduce multiple pregnancy rate in an assisted reproduction unit

TitleTransfer of two embryos instead of three will not compromise pregnancy rate but will reduce multiple pregnancy rate in an assisted reproduction unit
Authors
KeywordsMultiple pregnancy rate
Number of embryos replaced
Pregnancy rate
Issue Date2001
PublisherBlackwell Publishing Asia.
Citation
Journal Of Obstetrics And Gynaecology Research, 2001, v. 27 n. 6, p. 329-335 How to Cite?
AbstractObjective: To compare the pregnancy rates and multiple pregnancy rates of cycles initiated in 1998 and 1999, during which 3 and 2 embryos were advised to be replaced, respectively. Study design: A retrospective study. Results: There were no differences between 1998 and 1999 in the pregnancy rate per cycle started or per transfer, implantation rate and the multiple pregnancy rates, despite a significantly lower number of embryos replaced in 1999. A significantly higher implantation rate was found in cycles with frozen embryos than those without. Using logistic regression analysis, the chance of pregnancy was significantly improved only by the presence of frozen embryos in the fresh cycles with an odds ratio of 2.0 (95% confidence interval: 1.3-3.0) whereas the chance of multiple pregnancy was significantly increased by replacing 3 embryos instead of 2 (odds ratio: 2.1, 95% confidence interval: 1.1-4.2). Conclusion: Patients should be advised to have 2 embryos replaced without jeopardizing the pregnancy rates in the fresh cycles. The risk of multiple pregnancy is significantly increased when 3 embryos are transferred instead of 2.
Persistent Identifierhttp://hdl.handle.net/10722/87046
ISSN
2015 Impact Factor: 1.091
2015 SCImago Journal Rankings: 0.521
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, EHYen_HK
dc.contributor.authorLau, EYLen_HK
dc.contributor.authorYeung, WSBen_HK
dc.contributor.authorHo, PCen_HK
dc.date.accessioned2010-09-06T09:24:37Z-
dc.date.available2010-09-06T09:24:37Z-
dc.date.issued2001en_HK
dc.identifier.citationJournal Of Obstetrics And Gynaecology Research, 2001, v. 27 n. 6, p. 329-335en_HK
dc.identifier.issn1341-8076en_HK
dc.identifier.urihttp://hdl.handle.net/10722/87046-
dc.description.abstractObjective: To compare the pregnancy rates and multiple pregnancy rates of cycles initiated in 1998 and 1999, during which 3 and 2 embryos were advised to be replaced, respectively. Study design: A retrospective study. Results: There were no differences between 1998 and 1999 in the pregnancy rate per cycle started or per transfer, implantation rate and the multiple pregnancy rates, despite a significantly lower number of embryos replaced in 1999. A significantly higher implantation rate was found in cycles with frozen embryos than those without. Using logistic regression analysis, the chance of pregnancy was significantly improved only by the presence of frozen embryos in the fresh cycles with an odds ratio of 2.0 (95% confidence interval: 1.3-3.0) whereas the chance of multiple pregnancy was significantly increased by replacing 3 embryos instead of 2 (odds ratio: 2.1, 95% confidence interval: 1.1-4.2). Conclusion: Patients should be advised to have 2 embryos replaced without jeopardizing the pregnancy rates in the fresh cycles. The risk of multiple pregnancy is significantly increased when 3 embryos are transferred instead of 2.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing Asia.en_HK
dc.relation.ispartofJournal of Obstetrics and Gynaecology Researchen_HK
dc.subjectMultiple pregnancy rateen_HK
dc.subjectNumber of embryos replaceden_HK
dc.subjectPregnancy rateen_HK
dc.titleTransfer of two embryos instead of three will not compromise pregnancy rate but will reduce multiple pregnancy rate in an assisted reproduction uniten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1341-8076&volume=27&issue=6&spage=329&epage=335&date=2001&atitle=Transfer+of+two+embryos+instead+of+three+will+not+compromise+pregnancy+rate+but+will+reduce+multiple+pregnancy+rate+in+an+Assisted+Reproduction+Uniten_HK
dc.identifier.emailNg, EHY:nghye@hkucc.hku.hken_HK
dc.identifier.emailYeung, WSB:wsbyeung@hkucc.hku.hken_HK
dc.identifier.emailHo, PC:pcho@hku.hken_HK
dc.identifier.authorityNg, EHY=rp00426en_HK
dc.identifier.authorityYeung, WSB=rp00331en_HK
dc.identifier.authorityHo, PC=rp00325en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid11794819-
dc.identifier.scopuseid_2-s2.0-0035681105en_HK
dc.identifier.hkuros65378en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035681105&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume27en_HK
dc.identifier.issue6en_HK
dc.identifier.spage329en_HK
dc.identifier.epage335en_HK
dc.identifier.isiWOS:000173334500005-
dc.publisher.placeAustraliaen_HK
dc.identifier.scopusauthoridNg, EHY=35238184300en_HK
dc.identifier.scopusauthoridLau, EYL=7103086093en_HK
dc.identifier.scopusauthoridYeung, WSB=7102370745en_HK
dc.identifier.scopusauthoridHo, PC=7402211440en_HK

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