{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T16:54:49Z","timestamp":1780678489721,"version":"3.54.1"},"reference-count":18,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,9,19]],"date-time":"2013-09-19T00:00:00Z","timestamp":1379548800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>The aim of this study was to determine the distribution and associations of birthweight in twin pairs among a population of pregnant women in south <jats:styled-content style=\"fixed-case\">I<\/jats:styled-content>ndia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and Methods<\/jats:title><jats:p>This was a retrospective case record analysis of 705 twin pair pregnancies during the period 2008\u20132012. Associations of birthweight with maternal age, parity, pregnancy\u2010induced hypertension (<jats:styled-content style=\"fixed-case\">PIH<\/jats:styled-content>), gestational diabetes, obesity, chorionicity and sex of the twin pairs was explored using bivariate and multivariate analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The median birthweight (4250\u2009g, interquartile range 3530\u20134810) of dichorionic twins was significantly higher (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.0001) than monochorionic twins (3880\u2009g, interquartile range 3000\u20134380). Birthweight was associated with chorionicity (t\u2009=\u20094.04, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001), obesity (t\u2009=\u20092.44, <jats:italic>P<\/jats:italic>\u2009=\u20090.03), nulliparity (t\u2009=\u2009\u22122.87, <jats:italic>P<\/jats:italic>\u2009=\u20090.004), and <jats:styled-content style=\"fixed-case\">PIH<\/jats:styled-content> (t\u2009=\u2009\u22122.11, <jats:italic>P<\/jats:italic>\u2009=\u20090.04) in a multivariate linear regression model. Birthweights did not differ significantly between female\u2013male and female\u2013female pairs (t\u2009=\u20090.11, <jats:italic>P<\/jats:italic>\u2009=\u20090.81), female\u2013male and male\u2013male pairs (t\u2009=\u2009\u22120.62, <jats:italic>P<\/jats:italic>\u2009=\u20090.54) or female\u2013female and male\u2013male pairs (t\u2009=\u2009\u22120.78, <jats:italic>P<\/jats:italic>\u2009=\u20090.43) in a multivariate linear regression model. The highest birthweight of the twin pair did not differ significantly (t\u2009=\u20091.27, <jats:italic>P<\/jats:italic>\u2009=\u20090.21) by sex of the twin.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Birthweight of twins was significantly associated with chorionicity, obesity, <jats:styled-content style=\"fixed-case\">PIH<\/jats:styled-content> and nulliparity in this population. A potential masculinization effect was not found as the total birthweights did not differ significantly by sex of the twin pairs.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jog.12160","type":"journal-article","created":{"date-parts":[[2013,10,8]],"date-time":"2013-10-08T16:26:48Z","timestamp":1381249608000},"page":"215-218","source":"Crossref","is-referenced-by-count":3,"title":["Associations for birthweight of twin pairs in south <scp>I<\/scp>ndia"],"prefix":"10.1111","volume":"40","author":[{"given":"Arati","family":"Singh","sequence":"first","affiliation":[{"name":"Fellow Diplomate National Board, High Risk Pregnancy Fernandez Hospital  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anupama","family":"Singh","sequence":"additional","affiliation":[{"name":"Multiple Pregnancy Unit Fernandez Hospital  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Praveen K.","family":"Nirmalan","sequence":"additional","affiliation":[{"name":"Clinical Research Unit Fernandez Hospital  Hyderabad India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,9,19]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2007.01556.x"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006250-199912000-00019"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2002.01361.x"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.1995.06050349.x"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(97)70023-1"},{"issue":"1","key":"e_1_2_6_7_1","first-page":"553","article-title":"Standard for normal fetal growth in twin pregnancy","volume":"180","author":"Gardosi J","year":"1999","journal-title":"Am J Obstet Gynecol"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.1996.07060421.x"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.2337\/dc09-1848"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1997.tb10948.x"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0029-7844(98)00052-0"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-3016.2005.00611.x"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.6140"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1136\/fn.77.3.F171"},{"key":"e_1_2_6_15_1","first-page":"293","volume-title":"Early Fetal Growth and Development","author":"Chard T","year":"1994"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1515\/JPM.2002.079"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1515\/jpm-2011-0233"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(93)91224-A"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11154-012-9214-8"}],"container-title":["Journal of Obstetrics and Gynaecology Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjog.12160","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjog.12160","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jog.12160","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,2]],"date-time":"2023-10-02T17:52:41Z","timestamp":1696269161000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1111\/jog.12160"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,9,19]]},"references-count":18,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2014,1]]}},"alternative-id":["10.1111\/jog.12160"],"URL":"https:\/\/doi.org\/10.1111\/jog.12160","archive":["Portico"],"relation":{},"ISSN":["1341-8076","1447-0756"],"issn-type":[{"value":"1341-8076","type":"print"},{"value":"1447-0756","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,9,19]]}}}