{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T07:06:03Z","timestamp":1784531163415,"version":"3.55.0"},"reference-count":25,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,5,2]],"date-time":"2017-05-02T00:00:00Z","timestamp":1493683200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl J Gynecology & Obste"],"published-print":{"date-parts":[[2017,7]]},"abstract":"Abstract<\/jats:title>Objective<\/jats:title>To evaluate relationships between gestational weight gain (GWG<\/jats:styled-content>) and adverse events during pregnancy among patients of normal weight with twin pregnancies.<\/jats:p><\/jats:sec>Methods<\/jats:title>The present observational study included patients with dichorionic twin pregnancies with a pre\u2010gravid body mass index of 18.5\u201324.99\u00a0kg\/m2<\/jats:sup> who underwent delivery at no earlier than 22\u00a0weeks of pregnancy between January 1, 2007, and June 30, 2016, at the Medical University of Warsaw, Warsaw, Poland. The GWG<\/jats:styled-content> ratio was categorized as low (<0.45\u00a0kg\/wk), adequate (0.45\u20130.66\u00a0kg\/wk), or high (>0.66\u00a0kg\/wk), and pregnancy outcomes were compared between the GWG<\/jats:styled-content> ratio groups. Associations between GWG<\/jats:styled-content> ratio and pregnancy outcomes were estimated using generalized additive models.<\/jats:p><\/jats:sec>Results<\/jats:title>There were 201 patients included in the study. No differences in rates of preterm delivery, very preterm delivery (VPTD<\/jats:styled-content>), small for gestational age fetus, pre\u2010eclampsia, gestational diabetes, preterm premature rupture of membranes, or intrauterine fetal demise were observed between the patient groups. Linear relationships with GWG<\/jats:styled-content> ratio were recorded for VPTD<\/jats:styled-content> (P=<\/jats:italic>0.019) and spontaneous VPTD<\/jats:styled-content> (P=<\/jats:italic>0.003); non\u2010linear relationships with GWG<\/jats:styled-content> ratio were recorded for pre\u2010eclampsia (P=<\/jats:italic>0.023) and perinatal mortality (P=<\/jats:italic>0.015). A GWG<\/jats:styled-content> ratio of 0.55\u20130.56\u00a0kg\/wk appeared optimal in terms of twin pregnancy outcomes.<\/jats:p><\/jats:sec>Conclusion<\/jats:title>The incidence of VPTD<\/jats:styled-content>, pre\u2010eclampsia, and perinatal mortality during dichorionic twin pregnancy were associated with GWG<\/jats:styled-content> ratio.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.12171","type":"journal-article","created":{"date-parts":[[2017,4,7]],"date-time":"2017-04-07T16:18:01Z","timestamp":1491581881000},"page":"94-99","source":"Crossref","is-referenced-by-count":14,"title":["Observational study of associations between gestational weight gain and perinatal outcomes in dichorionic twin pregnancies"],"prefix":"10.1002","volume":"138","author":[{"given":"Katarzyna","family":"Kosinska\u2010Kaczynska","sequence":"first","affiliation":[{"name":"1st Department of Obstetrics and Gynecology Medical University of Warsaw Warsaw 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