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Is there a consequence for fetal growth of having an unlike-sexed cohabitant in utero?

Is there a consequence for fetal growth of having an unlike-sexed cohabitant in utero? Background There is evidence to suggest a masculinizing effect on female intrauterine development in unlike-sexed twins. The purpose of the present report was to examine the possible effects of male presence on fetal growth in females by comparing mean birthweights in members from dizygotic unlike-sexed (DZU) pairs with those from dizygotic like-sexed (DZL) pairs. Methods The sample consisted of 1087 DZU and 1089 DZL twin pairs from the New Norwegian Twin Panel, which was established by identifying all twin births from 1967 to 1974 through the population-based Medical Birth Registry. Results The mean birthweight of females from DZU pairs was 2684 ± 15 g (±SEM), as opposed to 2647 ± 19 gin females from DZL pairs (P= 0.06). For males, the mean birthweight was 2812 ± 16 g in DZU pairs and 2805 ± 20 g in DZL pairs (P= 0.78). Conclusions We found a tendency for the birthweight in females to be influenced by the presence of a male co-twin. This observation may have a biological significance and should lead to a close follow-up of DZU and DZL females with respect to hormone-sensitive disorders and reproductive ability. Key words Birthweight dizygotic twins hormonal influences fetal growth masculinizing effect © International Epidemiological Association « Previous | Next Article » Table of Contents This Article Int. J. Epidemiol. (1998) 27 (4): 657-659. doi: 10.1093/ije/27.4.657 » Abstract Free Full Text (PDF) Free Classifications Original Articles Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Similar articles in PubMed Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Glinianaia, S. V. Articles by Tambs, K. Search for related content PubMed PubMed citation Articles by Glinianaia, S. V. Articles by Magnus, P. Articles by Harris, J. R. Articles by Tambs, K. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue August 2015 44 (4) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue This journal is a member of the Committee on Publication Ethics (COPE) We are mobile – find out more Journals Career Network Published on behalf of The International Epidemiological Association Impact factor: 9.176 5-Yr impact factor: 8.615 Co-Editors G Davey Smith & S Ebrahim View full editorial board For Authors Instructions to authors Online submission instructions Submit now! Self-archiving policy Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("MED00860"); Most Most Read Why are children in the same family so different from one another? Population ageing in the United States of America: implications for public programmes Classification of epidemiological study designs Health in Cuba Sick individuals and sick populations » View all Most Read articles Most Cited 'Mendelian randomization': can genetic epidemiology contribute to understanding environmental determinants of disease? Sick Individuals and Sick Populations Food-Based Validation of a Dietary Questionnaire: The Effects of Week-to-Week Variation in Food Consumption A life course approach to chronic disease epidemiology: conceptual models, empirical challenges and interdisciplinary perspectives The use of fractional polynomials to model continuous risk variables in epidemiology » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. 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Is there a consequence for fetal growth of having an unlike-sexed cohabitant in utero?

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References (16)

Publisher
Oxford University Press
Copyright
Copyright © 2015 International Epidemiological Association
ISSN
0300-5771
eISSN
1464-3685
DOI
10.1093/ije/27.4.657
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Abstract

Background There is evidence to suggest a masculinizing effect on female intrauterine development in unlike-sexed twins. The purpose of the present report was to examine the possible effects of male presence on fetal growth in females by comparing mean birthweights in members from dizygotic unlike-sexed (DZU) pairs with those from dizygotic like-sexed (DZL) pairs. Methods The sample consisted of 1087 DZU and 1089 DZL twin pairs from the New Norwegian Twin Panel, which was established by identifying all twin births from 1967 to 1974 through the population-based Medical Birth Registry. Results The mean birthweight of females from DZU pairs was 2684 ± 15 g (±SEM), as opposed to 2647 ± 19 gin females from DZL pairs (P= 0.06). For males, the mean birthweight was 2812 ± 16 g in DZU pairs and 2805 ± 20 g in DZL pairs (P= 0.78). Conclusions We found a tendency for the birthweight in females to be influenced by the presence of a male co-twin. This observation may have a biological significance and should lead to a close follow-up of DZU and DZL females with respect to hormone-sensitive disorders and reproductive ability. Key words Birthweight dizygotic twins hormonal influences fetal growth masculinizing effect © International Epidemiological Association « Previous | Next Article » Table of Contents This Article Int. J. Epidemiol. (1998) 27 (4): 657-659. doi: 10.1093/ije/27.4.657 » Abstract Free Full Text (PDF) Free Classifications Original Articles Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Similar articles in PubMed Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Glinianaia, S. V. Articles by Tambs, K. Search for related content PubMed PubMed citation Articles by Glinianaia, S. V. Articles by Magnus, P. Articles by Harris, J. R. Articles by Tambs, K. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue August 2015 44 (4) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue This journal is a member of the Committee on Publication Ethics (COPE) We are mobile – find out more Journals Career Network Published on behalf of The International Epidemiological Association Impact factor: 9.176 5-Yr impact factor: 8.615 Co-Editors G Davey Smith & S Ebrahim View full editorial board For Authors Instructions to authors Online submission instructions Submit now! Self-archiving policy Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("MED00860"); Most Most Read Why are children in the same family so different from one another? Population ageing in the United States of America: implications for public programmes Classification of epidemiological study designs Health in Cuba Sick individuals and sick populations » View all Most Read articles Most Cited 'Mendelian randomization': can genetic epidemiology contribute to understanding environmental determinants of disease? Sick Individuals and Sick Populations Food-Based Validation of a Dietary Questionnaire: The Effects of Week-to-Week Variation in Food Consumption A life course approach to chronic disease epidemiology: conceptual models, empirical challenges and interdisciplinary perspectives The use of fractional polynomials to model continuous risk variables in epidemiology » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department. Online ISSN 1464-3685 - Print ISSN 0300-5771 Copyright © 2015 International Epidemiological Association Oxford Journals Oxford University Press Site Map Privacy Policy Cookie Policy Legal Notices Frequently Asked Questions Other Oxford University Press sites: Oxford University Press Oxford Journals China Oxford Journals Japan Academic & Professional books Children's & Schools Books Dictionaries & Reference Dictionary of National Biography Digital Reference English Language Teaching Higher Education Textbooks International Education Unit Law Medicine Music Online Products & Publishing Oxford Bibliographies Online Oxford Dictionaries Online Oxford English Dictionary Oxford Language Dictionaries Online Oxford Scholarship Online Reference Rights and Permissions Resources for Retailers & Wholesalers Resources for the Healthcare Industry Very Short Introductions World's Classics function fnc_onDomLoaded() { var query_context = getQueryContext(); PF_initOIUnderbar(query_context,":QS:default","","JRN"); PF_insertOIUnderbar(0); }; if (window.addEventListener) { window.addEventListener('load', fnc_onDomLoaded, false); } else if (window.attachEvent) { window.attachEvent('onload', fnc_onDomLoaded); } var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-189672-16"); pageTracker._setDomainName(".oxfordjournals.org"); pageTracker._trackPageview(); } catch(err) {}

Journal

International Journal of Epidemiology – Oxford University Press

Published: Aug 1, 1998

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