{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T14:50:03Z","timestamp":1774450203358,"version":"3.50.1"},"reference-count":15,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,2,21]],"date-time":"2018-02-21T00:00:00Z","timestamp":1519171200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Reprod Medicine &amp; Biology"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the effect of embryo quality on pregnancy outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This retrospective analysis included 80 live singleton births, resulting from morphologically good\u2010quality embryo transfers, and 25 live singleton births that resulted from morphologically poor\u2010quality embryo transfers between January, 2008 and December, 2014. Cleavage embryos that were graded as \u22652, according to the Veeck classification system, and blastocysts that were graded as \u22653<jats:styled-content style=\"fixed-case\">BB<\/jats:styled-content>, according to the Gardner classification system, were defined as good quality. The obstetric and neonatal outcomes were compared between the poor\u2010 and good\u2010quality embryo transfer groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean maternal age between the groups was similar. The blastocyst transfer rate was higher in the good\u2010quality, than in the poor\u2010quality, embryo transfer group. Other characteristics, including parity, infertility duration, the intracytoplasmic sperm injection rate, frozen\u2010thawed embryo transfer rate, endometrial thickness, and hormone values before the embryo transfer, were similar between the groups. The obstetric and neonatal outcomes of live births between the two groups were not different in terms of preterm delivery, birthweight, small or large size for gestational age, malformation, umbilical artery cord <jats:styled-content style=\"fixed-case\">pH<\/jats:styled-content> of &lt;7.20, hypertensive disorders of pregnancy, gestational diabetes mellitus, chorioamnionitis, placenta previa, and placental abruption.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The obstetric and neonatal outcomes of live births between the poor\u2010 and good\u2010quality embryo transfers were equivalent.<\/jats:p><\/jats:sec>","DOI":"10.1002\/rmb2.12090","type":"journal-article","created":{"date-parts":[[2018,2,21]],"date-time":"2018-02-21T20:37:37Z","timestamp":1519245457000},"page":"188-194","source":"Crossref","is-referenced-by-count":19,"title":["Comparative study of obstetric and neonatal outcomes of live births between poor\u2010 and good\u2010quality embryo transfers"],"prefix":"10.1002","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0831-9900","authenticated-orcid":false,"given":"Kozue","family":"Akamine","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Graduate School of Medical Science University of the Ryukyus  Nishihara Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiko","family":"Mekaru","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Graduate School of Medical Science University of the Ryukyus  Nishihara Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiya","family":"Gibo","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Graduate School of Medical Science University of the Ryukyus  Nishihara Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chinatsu","family":"Nagata","sequence":"additional","affiliation":[{"name":"Department of 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