{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T23:17:18Z","timestamp":1783552638924,"version":"3.55.0"},"reference-count":30,"publisher":"Georg Thieme Verlag KG","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>This study aimed to evaluate the factors associated with completed delayed cord clamping (DCC).<\/jats:p>\n                  <jats:p>We conducted a retrospective review of viable singleton deliveries at a single academic medical center from January 1, 2020 to December 31, 2022. Demographics, obstetric variables, and neonatal data were extracted from the electronic medical record. Patients who received DCC were compared with those who did not. Multivariate logistic regression was used to assess factors associated with completion of 30 to 60\u2009seconds of DCC, with a sub-analysis of preterm deliveries &lt;30 weeks.<\/jats:p>\n                  <jats:p>DCC was completed in 5,018\/5,889 (85.2%) eligible deliveries. Lower DCC rates were observed among non-Black, White, or Asian patients versus White patients (82.1 vs. 87.1%; adjusted odds ratio [aOR]\u2009=\u20090.60, 95% CI: 0.47\u20130.78) and in 2020 versus 2022 (83.6 vs. 86.5%; aOR\u2009=\u20090.74, 95% CI: 0.61\u20130.91). Patients who completed DCC had lower mean BMI (32.59 vs. 34.53, aOR\u2009=\u20090.99, 95% CI: 0.98\u20130.996), were less likely to be nulliparous (83.9 vs. 86.4%, aOR\u2009=\u20090.78, 95% CI: 0.66\u20130.92), less likely to have pregestational diabetes (72.8 vs. 86.1%, aOR\u2009=\u20090.63, 95% CI: 0.45\u20130.87), chorioamnionitis (72.9 vs. 85.6%, aOR\u2009=\u20090.51, 95% CI: 0.36\u20130.73), or postpartum hemorrhage (73.0 vs. 85.6%, aOR\u2009=\u20090.59, 95% CI: 0.41\u20130.86). Preterm (68.5 vs. 87.8%, aOR\u2009=\u20090.50, 95% CI: 0.40\u20130.63) and cesarean deliveries (77.2 vs. 90.0%, aOR\u2009=\u20090.72, 95% CI: 0.60\u20130.85), and infants requiring resuscitation (61.7 vs. 91.6%; aOR\u2009=\u20090.20, 95% CI: 0.17\u20130.23) were less likely to have completed DCC. Among preterm newborns &lt;30 weeks, neonatal resuscitation was the only factor associated with not receiving DCC after adjustment.<\/jats:p>\n                  <jats:p>Race, delivery mode and year, maternal BMI, nulliparity, pregestational diabetes, chorioamnionitis, postpartum hemorrhage, preterm birth, and neonatal resuscitation were independently associated with completed DCC. Strategies to improve DCC execution should target preterm infants and address the challenges of performing DCC in neonates requiring urgent resuscitation.<\/jats:p>","DOI":"10.1055\/a-2744-8299","type":"journal-article","created":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T00:37:01Z","timestamp":1762994221000},"page":"1290-1298","source":"Crossref","is-referenced-by-count":0,"title":["Maternal, Obstetric, and Neonatal Characteristics Associated with Delayed Cord Clamping"],"prefix":"10.1055","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-2067-7784","authenticated-orcid":false,"given":"Emily","family":"Zhao","sequence":"additional","affiliation":[{"name":"Johns Hopkins University School of Medicine, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Breanna","family":"Valcarcel","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camille","family":"Shantz","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Center for Fetal Therapy, Johns Hopkins University, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren N.","family":"Meiss","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siwei","family":"Xie","sequence":"additional","affiliation":[{"name":"Biostatistics, Epidemiology, and Data Management Core, Johns Hopkins School of Medicine, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sean","family":"Tackett","sequence":"additional","affiliation":[{"name":"Biostatistics, Epidemiology, and Data Management Core, Johns Hopkins School of Medicine, Baltimore, Maryland, United States"},{"name":"Department of Medicine, Johns Hopkins University, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brittany","family":"Schwarz","sequence":"additional","affiliation":[{"name":"Division of Neonatal-Perinatal Medicine, Johns Hopkins University, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mara","family":"Rosner","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Center for Fetal Therapy, Johns Hopkins University, Baltimore, Maryland, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2025,11,27]]},"reference":[{"issue":"06","key":"ref1","doi-asserted-by":"crossref","first-page":"e100","DOI":"10.1097\/AOG.0000000000004167","article-title":"Delayed umbilical cord clamping after birth: ACOG Committee Opinion, Number 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A quality improvement initiative for delayed cord clamping in preterm infants","volume":"61","author":"A Mohamad","year":"2025","journal-title":"J Paediatr Child Health"},{"issue":"03","key":"ref21","doi-asserted-by":"crossref","first-page":"265","DOI":"10.1542\/hpeds.2022-006681","article-title":"Embracing change: a quality improvement project to introduce deferred cord clamping","volume":"13","author":"J Peterson","year":"2023","journal-title":"Hosp Pediatr"},{"issue":"05","key":"ref22","doi-asserted-by":"crossref","first-page":"e2411140","DOI":"10.1001\/jamanetworkopen.2024.11140","article-title":"Ventilatory assistance before umbilical cord clamping in extremely preterm infants: a randomized clinical trial","volume":"7","author":"K D Fairchild","year":"2024","journal-title":"JAMA Netw Open"},{"issue":"03","key":"ref23","doi-asserted-by":"crossref","first-page":"1105","DOI":"10.1007\/s00431-022-04776-2","article-title":"Implementing intact cord resuscitation in very preterm infants: feasibility and pitfalls","volume":"182","author":"C Hocq","year":"2023","journal-title":"Eur J Pediatr"},{"key":"ref24","doi-asserted-by":"crossref","first-page":"94","DOI":"10.1016\/j.jpeds.2022.09.025","article-title":"Effect of breathing support in very preterm infants not breathing during deferred cord clamping: a randomized controlled trial (the ABC study)","volume":"253","author":"E Nevill","year":"2023","journal-title":"J Pediatr"},{"issue":"01","key":"ref25","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1186\/s12884-022-04771-3","article-title":"Implementation of delayed cord clamping in public health facilities: a case study from India","volume":"22","author":"A Chowdhury","year":"2022","journal-title":"BMC Pregnancy Childbirth"},{"issue":"03","key":"ref26","doi-asserted-by":"crossref","first-page":"391","DOI":"10.3233\/NPM-200497","article-title":"Delayed cord clamping in infants born less than 35 weeks: a retrospective study","volume":"14","author":"N Singh","year":"2021","journal-title":"J Neonatal Perinatal Med"},{"issue":"01","key":"ref27","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1186\/s13104-018-3198-8","article-title":"Factors associated with timing of umbilical cord clamping in tertiary hospital of Nepal","volume":"11","author":"V Nelin","year":"2018","journal-title":"BMC Res Notes"},{"issue":"11","key":"ref28","doi-asserted-by":"crossref","first-page":"1324","DOI":"10.1111\/1471-0528.16362","article-title":"Maternal transmission of SARS-COV-2 to the neonate, and possible routes for such transmission: a systematic review and critical analysis","volume":"127","author":"K F Walker","year":"2020","journal-title":"BJOG"},{"key":"ref29","doi-asserted-by":"crossref","first-page":"100","DOI":"10.3389\/fped.2018.00100","article-title":"Acceptability of bedside resuscitation with intact umbilical cord to clinicians and patients' families in the United States","volume":"6","author":"A C Katheria","year":"2018","journal-title":"Front Pediatr"},{"issue":"05","key":"ref30","doi-asserted-by":"crossref","first-page":"1481","DOI":"10.1038\/s41390-024-03496-7","article-title":"Umbilical cord management in newborn resuscitation: a systematic review and meta-analysis","volume":"97","author":"G S Major","year":"2025","journal-title":"Pediatr Res"}],"container-title":["American Journal of Perinatology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/a-2744-8299.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T22:47:43Z","timestamp":1783550863000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/a-2744-8299"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,12]]},"references-count":30,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2026,7,8]]},"published-print":{"date-parts":[[2026,7]]}},"URL":"https:\/\/doi.org\/10.1055\/a-2744-8299","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["0735-1631","1098-8785"],"issn-type":[{"value":"0735-1631","type":"print"},{"value":"1098-8785","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2025,11,12]]},"published":{"date-parts":[[2025,11,12]]}}}