{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T20:55:59Z","timestamp":1788555359838,"version":"build-2803163510"},"reference-count":28,"publisher":"Public Library of Science (PLoS)","issue":"4","license":[{"start":{"date-parts":[[2023,4,4]],"date-time":"2023-04-04T00:00:00Z","timestamp":1680566400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Background<\/jats:title>\n<jats:p>Post-term pregnancy is a health problem of clinical importance and; tends to recur in subsequent pregnancies. Maternal age, height, and male fetal sex are risk factors associated with Post-term pregnancy. The study aimed to determine the recurrence risk of post-term pregnancy and associated factors among women delivered at KCMC referral hospital.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methodology<\/jats:title>\n<jats:p>This retrospective cohort study used KCMC zonal referral hospital medical birth registry cohort data for 43472 women delivered between 2000 and 2018. Data were analyzed using STATA version 15 software. Log-binomial regression with robust variance estimator determined the factors associated recurrence of post-term pregnancy adjusted for other factors.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Results<\/jats:title>\n<jats:p>A total of 43472 women were analyzed. The proportion of post-term pregnancy was 11.4%, and the recurrence was 14.8%. The recurrence risk of post-term pregnancy was increased when a woman had a history of previous post-term pregnancy (aRR: 1.75; 95%CI: 1.44, 2.11). Advanced maternal age, i.e., \u226535years (aRR: 0.80; 95%CI: 0.65, 0.99), having secondary and higher education (aRR: 0.8; 95%CI: 0.66, 0.97), and being employed (aRR: 0.68; 95%CI: 0.55, 0.84) decreased the recurrence risk of post-term pregnancy. Women with recurrence of post-term pregnancy had a higher risk of delivering newborns weighed \u22654000gm (aRR: 5.05; 95% CI: 2.80, 9.09).<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Conclusion<\/jats:title>\n<jats:p>Post-term pregnancy is associated with recurrence risk in subsequent pregnancies. A history of previous post-term pregnancy is associated risk factor and these women are at increased risk of delivering newborns weighed \u22654000gm. Clinical counselling of women at risk of post-term pregnancy and timely management is recommended to prevent adverse neonatal and maternal outcomes.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0282078","type":"journal-article","created":{"date-parts":[[2023,4,4]],"date-time":"2023-04-04T17:54:58Z","timestamp":1680630898000},"page":"e0282078","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":5,"title":["Recurrence of post-term pregnancy and associated factors among women who delivered at Kilimanjaro Christian Medical Centre in northern Tanzania: A retrospective cohort study"],"prefix":"10.1371","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5472-8094","authenticated-orcid":true,"given":"Modesta","family":"Mitao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Winfrida C.","family":"Mwita","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cecilia","family":"Antony","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hamidu","family":"Adinan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin","family":"Shayo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caroline","family":"Amour","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9861-5879","authenticated-orcid":true,"given":"Innocent B.","family":"Mboya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael Johnson","family":"Mahande","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2023,4,4]]},"reference":[{"key":"pone.0282078.ref001","doi-asserted-by":"crossref","first-page":"639","DOI":"10.1097\/00006250-200409000-00052","article-title":"Management of Postterm Pregnancy. 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Elsevier Ireland Ltd"},{"issue":"4","key":"pone.0282078.ref005","first-page":"181","article-title":"Factors influencing early perinatal mortality in a rural district hospital","volume":"69","author":"Rogo KO Kavoo-Linge","year":"1992","journal-title":"East Afr Med J"},{"issue":"1","key":"pone.0282078.ref006","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1186\/s12912-016-0170-6","article-title":"Pre-term and post-term births: predictors and implications on neonatal mortality in Northern Ethiopia","volume":"15","author":"HG Mengesha","year":"2016","journal-title":"BMC Nurs"},{"issue":"3","key":"pone.0282078.ref007","doi-asserted-by":"crossref","first-page":"241.e1","DOI":"10.1016\/j.ajog.2006.10.873","article-title":"Risk for postterm delivery after previous postterm delivery.","volume":"196","author":"ZAF Kistka","year":"2007","journal-title":"Am J Obstet Gynecol"},{"key":"pone.0282078.ref008","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1016\/j.ejogrb.2015.05.021","article-title":"Recurrence rate and outcome of postterm pregnancy, a national cohort study.","volume":"193","author":"JC Kortekaas","year":"2015","journal-title":"Eur J Obstet Gynecol Reprod Biol."},{"issue":"13","key":"pone.0282078.ref009","doi-asserted-by":"crossref","first-page":"1630","DOI":"10.1111\/j.1471-0528.2011.03154.x","article-title":"Recurrence of prolonged and post-term gestational age across generations: Maternal and paternal contribution.","volume":"118","author":"NH Morken","year":"2011","journal-title":"BJOG An Int J Obstet Gynaecol"},{"issue":"2","key":"pone.0282078.ref010","doi-asserted-by":"crossref","first-page":"155.e1","DOI":"10.1016\/j.ajog.2006.08.040","article-title":"Maternal and obstetric complications of pregnancy are associated with increasing gestational age at term.","volume":"196","author":"AB Caughey","year":"2007","journal-title":"Am J Obstet Gynecol"},{"issue":"12","key":"pone.0282078.ref011","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1038\/jp.2011.43","article-title":"Perinatal morbidity and mortality in late-term and post-term pregnancy. NEOSANO perinatal network\u2019s experience in Mexico","volume":"31","author":"AM De Los Santos-Garate","year":"2011","journal-title":"J Perinatol."},{"key":"pone.0282078.ref012","first-page":"1","article-title":"Postdates induction with an unfavorable cervix and risk of cesarean*.","author":"J McCoy","year":"2018","journal-title":"J Matern Neonatal Med."},{"issue":"1","key":"pone.0282078.ref013","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s12884-020-02861-8","article-title":"Prevalence and risk factors for caesarean delivery following labor induction at a tertiary hospital in North Tanzania: A retrospective cohort study (2000\u20132015).","volume":"20","author":"CS Tarimo","year":"2020","journal-title":"BMC Pregnancy Childbirth."},{"issue":"13","key":"pone.0282078.ref014","doi-asserted-by":"crossref","first-page":"1648","DOI":"10.1111\/j.1471-0528.2012.03502.x","article-title":"Labour dystocia-risk of recurrence and instrumental delivery in following labour-a population-based cohort study.","volume":"119","author":"A Sandstr\u00f6m","year":"2012","journal-title":"BJOG An Int J Obstet Gynaecol"},{"key":"pone.0282078.ref015","first-page":"39","article-title":"WHO recommendations: Induction of labour at or beyond term.","author":"World Health Organization","year":"2018","journal-title":"WHO recommendations: Induction of labour at or beyond term."},{"issue":"June","key":"pone.0282078.ref016","first-page":"142","author":"Ministry of Health","year":"2016","journal-title":"The National Road Map Strategic Plan to Improve Reproductive, Maternal, Newborn, Child and Adolescent Health in Tanzania\u2014One Plan II."},{"key":"pone.0282078.ref017","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1186\/1471-2431-12-116","article-title":"BMC Pediatrics Full text Cause-specific neonatal mortality in a neonatal care unit in Northern Tanzania a registry based cohort study.","volume":"12","author":"Theophil Mmbaga, Blandina","year":"2012","journal-title":"BMC Pediatr"},{"issue":"4","key":"pone.0282078.ref018","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1371\/journal.pone.0231636","article-title":"Predictors of perinatal death in the presence of missing data: A birth registry-based study in northern Tanzania","volume":"15","author":"IB Mboya","year":"2020","journal-title":"PLoS One"},{"issue":"2","key":"pone.0282078.ref019","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1002\/osp4.395","article-title":"Maternal obesity and intrapartum obstetric complications among pregnant women: Retrospective cohort analysis from medical birth registry in Northern Tanzania.","volume":"6","author":"AH Mwanamsangu","year":"2020","journal-title":"Obes Sci Pract"},{"key":"pone.0282078.ref020","first-page":"3","volume-title":"UNICEF-WHO Low birthweight estimates: Levels and trends 2000\u20132015.","author":"UNICEF-WHO","year":"2019"},{"issue":"6254","key":"pone.0282078.ref021","first-page":"1567","article-title":"Perinatal and neonatal mortality Country, Regional and Global Estimates","volume":"281","author":"World Health Organization (WHO).","year":"2006","journal-title":"Br Med J"},{"issue":"5","key":"pone.0282078.ref022","first-page":"438","volume":"163","author":"R When","year":"2015","journal-title":"The Relative Merits of Risk Ratios and Odds Ratios."},{"issue":"5","key":"pone.0282078.ref023","first-page":"365","volume":"12","author":"D Fekedulegn","year":"2010","journal-title":"Metabolic Syndrome"},{"issue":"7387","key":"pone.0282078.ref024","doi-asserted-by":"crossref","first-page":"476","DOI":"10.1136\/bmj.326.7387.476","article-title":"Risk of recurrence of prolonged pregnancy","volume":"326","author":"AW Olesen","year":"2003","journal-title":"Br Med J"},{"issue":"2","key":"pone.0282078.ref025","first-page":"72","article-title":"Postmaturity and fetal macrosomia in Jos, Nigeria.","volume":"4","author":"JT Mutihir","year":"2005","journal-title":"Ann Afr Med"},{"key":"pone.0282078.ref026","author":"R. 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