{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,21]],"date-time":"2025-05-21T12:40:09Z","timestamp":1747831209267,"version":"3.41.0"},"reference-count":34,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T00:00:00Z","timestamp":1736726400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100005292","name":"Instituto de Pesquisa Translacional em Sa\u00fade e Ambiente na Regi\u00e3o Amaz\u00f4nica","doi-asserted-by":"publisher","award":["NO.2023A03J1009"],"award-info":[{"award-number":["NO.2023A03J1009"]}],"id":[{"id":"10.13039\/501100005292","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp; Obste"],"published-print":{"date-parts":[[2025,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To develop and validate a nomogram to predict severe postpartum hemorrhage following cesarean delivery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This is a two\u2010center retrospective cohort study. Cesarean delivery patients from the First Affiliate Hospital of Jinan University were divided into a development cohort (<jats:italic>n<\/jats:italic>\u2009=\u200911\u2009137) and an internal validation cohort (<jats:italic>n<\/jats:italic>\u2009=\u20094739). Cesarean delivery patients from the Dongguan Maternal and Child Health Care Hospital (<jats:italic>n<\/jats:italic>\u2009=\u200913\u2009775) were enrolled in the external validation cohort. The nomogram was based on independent risk factors for severe postpartum hemorrhage obtained by multivariate logistic regression. We evaluated the discrimination and calibration of the nomogram in the development and validation cohorts.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The nomogram used data including previous cesarean delivery, pre\u2010pregnancy weight, preterm birth, placenta previa, placenta accreta spectrum disorders, placental abruption, and mode of anesthesia. The area under the curves of the nomogram in the internal and external validation cohorts were 0.922 (95% confidence interval [CI] 0.897\u20130.947) and 0.813 (95% CI 0.785\u20130.841), respectively. Consistency between the predicted and actual probabilities was observed in both validation cohorts.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The nomogram displayed good calibration and discrimination and can be used for screening in clinical practice to enable clinicians to intervene appropriately.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.16149","type":"journal-article","created":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T11:53:30Z","timestamp":1736769210000},"page":"1191-1199","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Development and validation of a prognostic nomogram for\u00a0severe postpartum hemorrhage after cesarean delivery: A\u00a0two\u2010center retrospective study"],"prefix":"10.1002","volume":"169","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5609-7230","authenticated-orcid":false,"given":"Wanchang","family":"Yin","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology The First Affiliate Hospital of Jinan University, Jinan University  Guangzhou China"},{"name":"Department of Obstetrics Dongguan Maternal and Child Health Care Hospital  Dongguan China"},{"name":"Affiliated Dongguan Maternal &amp; Child Healthcare Hospital Southern Medical University  Dongguan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinghe","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Obstetrics Dongguan Maternal and Child Health Care Hospital  Dongguan China"},{"name":"Affiliated Dongguan Maternal &amp; Child Healthcare Hospital Southern Medical University  Dongguan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1239-7968","authenticated-orcid":false,"given":"Ruiman","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology The First Affiliate Hospital of Jinan University, Jinan University  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,1,13]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000000746"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2013.07.007"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2214-109X(14)70227-X"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2007.01316.x"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2010.01.011"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016349.2010.514324"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2011.03198.x"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijgo.2007.03.011"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e31822a6c59"},{"issue":"1","key":"e_1_2_10_11_1","first-page":"21","article-title":"Temporal trends in postpartum hemorrhage and severe postpartum hemorrhage in Canada from 2003 to 2010","volume":"36","author":"Mehrabadi A","year":"2014","journal-title":"JOGC"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12884-021-03818-1"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2008.01859.x"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00404-015-3725-y"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3182941c78"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2010.08.023"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2016.18663"},{"key":"e_1_2_10_18_1","unstructured":"American Congress of Obstetricians and Gynecologists.Maternal safety bundle for obstetric hemorrhage. 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