{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T01:35:40Z","timestamp":1747186540480,"version":"3.40.5"},"reference-count":22,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2021,6,21]],"date-time":"2021-06-21T00:00:00Z","timestamp":1624233600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2021,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To estimate the association of unicornuate uterus (UU) with adverse obstetric outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Using data from 26\u2009737 singleton childbirths from a tertiary hospital from 1999 to 2019, we identified 44 births from women with a UU. A total of 367 births from women with a normal uterus were randomly selected as controls. The outcome measures were preterm birth (PTB), breech presentation, and cesarean delivery. The subdivisions of PTB and indications for cesarean delivery were described.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The presence of UU was associated with an increased risk of PTB (adjusted risk ratio [aRR], 2.3; 95% confidence interval [CI], 1.1\u20134.9), breech presentation (aRR, 6.2; 95% CI, 2.9\u201313.2), and cesarean delivery (aRR, 2.1; 95% CI, 1.8\u20132.7). For women with a UU, most PTBs (7\/9) were moderate to late PTBs, and approximately half of the PTBs (4\/9) were iatrogenic due to preeclampsia (PE). Breech presentation, PE, and prior surgery for rudimentary horn resection were UU\u2010related indications for cesarean delivery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Women with a UU have a higher risk of PTB, breech presentation, and cesarean delivery. Understanding of the subdivisions of PTBs and indications for cesarean delivery might help clinicians when counseling women with pregnancy complicated by a UU.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jog.14911","type":"journal-article","created":{"date-parts":[[2021,6,22]],"date-time":"2021-06-22T03:53:16Z","timestamp":1624333996000},"page":"3136-3143","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Association of a unicornuate uterus with adverse obstetric outcomes: A retrospective cohort study"],"prefix":"10.1111","volume":"47","author":[{"given":"Yan","family":"L\u00fc","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingliang","family":"Ji","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shan","family":"Deng","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinsong","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7738-962X","authenticated-orcid":false,"given":"Xiya","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,6,21]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/OGX.0000000000000444"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0015-0282(16)59942-7"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0015-0282(97)81506-3"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1479-828X.2005.00346.x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0015-0282(16)55141-3"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.10056"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.rbmo.2014.09.006"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1080\/14767058.2018.1438403"},{"key":"e_1_2_7_10_1","first-page":"247","article-title":"WHO: recommended definitions, terminology and format for statistical tables related to the perinatal period and use of a new certificate for cause of perinatal deaths. 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