{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,18]],"date-time":"2025-01-18T05:09:32Z","timestamp":1737176972820,"version":"3.33.0"},"reference-count":22,"publisher":"Cambridge University Press (CUP)","issue":"6","license":[{"start":{"date-parts":[[2024,10,28]],"date-time":"2024-10-28T00:00:00Z","timestamp":1730073600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Twin Res Hum Genet"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Twins lag behind singletons in their early psychomotor development, but little is known about how chorionicity affects this difference. We compared early psychomotor development in singletons, monochorionic (MC) twins and dichorionic (DC) twins. Our longitudinal data from the Japan Environment and Children\u2019s Study (JECS; see Appendix) included 98,042 singletons, 577 MC twins and 1051 DC twins representing the general Japanese population. Chorionicity was evaluated by ultrasound images and complemented by postnatal pathological examinations. Five domains of psychomotor development were evaluated at 6 time points from 6 months to 3 years of age using the Ages and Stages Questionnaires (ASQ-3). The data were analyzed using linear regression models. Twins lagged behind singletons in all areas of psychomotor development during infancy. This gap decreased over time but was still noticeable at 3 years of age. More than half of this difference was attributed to twins having lower birth weight and being born earlier in gestation. MC twins showed slightly delayed development compared to DC twins, but this difference was minor compared to the overall gap between twins and singletons. Twins delay singletons in their early psychomotor development, and this delay is not specific to MC twinning.<\/jats:p>","DOI":"10.1017\/thg.2024.39","type":"journal-article","created":{"date-parts":[[2024,10,28]],"date-time":"2024-10-28T07:33:46Z","timestamp":1730100826000},"page":"295-301","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":0,"title":["Chorionicity and Psychomotor Development From Infancy to Childhood: The Japan Environment and Children\u2019s Study"],"prefix":"10.1017","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1759-3079","authenticated-orcid":false,"given":"Karri","family":"Silventoinen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chika","family":"Honda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rie","family":"Tomizawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Norio","family":"Sakai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoyo","family":"Ikehara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junji","family":"Miyazaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kanami","family":"Tanigawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takashi","family":"Kimura","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ryo","family":"Kawasaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyasu","family":"Iso","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Japan Environment and Children\u2019s Study Group","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2024,10,28]]},"reference":[{"key":"S1832427424000392_ref19","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2023.05.022"},{"key":"S1832427424000392_ref10","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2214.2009.00963.x"},{"key":"S1832427424000392_ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2016.12.176"},{"key":"S1832427424000392_ref13","doi-asserted-by":"publisher","DOI":"10.1002\/uog.21889"},{"key":"S1832427424000392_ref17","doi-asserted-by":"publisher","DOI":"10.1111\/j.1651-2227.2008.00853.x"},{"key":"S1832427424000392_ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2014.03.039"},{"key":"S1832427424000392_ref15","doi-asserted-by":"publisher","DOI":"10.1111\/j.1728-4457.2015.00088.x"},{"key":"S1832427424000392_ref12","doi-asserted-by":"publisher","DOI":"10.2188\/jea.JE20170018"},{"key":"S1832427424000392_ref22","doi-asserted-by":"publisher","DOI":"10.1375\/twin.10.2.379"},{"key":"S1832427424000392_ref14","doi-asserted-by":"publisher","DOI":"10.1111\/dmcn.13675"},{"key":"S1832427424000392_ref21","doi-asserted-by":"publisher","DOI":"10.1038\/s41372-022-01534-y"},{"key":"S1832427424000392_ref5","doi-asserted-by":"publisher","DOI":"10.1038\/s41372-018-0190-z"},{"key":"S1832427424000392_ref11","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.c.30208"},{"key":"S1832427424000392_ref1","doi-asserted-by":"publisher","DOI":"10.1016\/j.infbeh.2015.08.005"},{"key":"S1832427424000392_ref20","doi-asserted-by":"publisher","DOI":"10.1111\/j.0006-341X.2000.00645.x"},{"key":"S1832427424000392_ref8","doi-asserted-by":"publisher","DOI":"10.1111\/jog.12703"},{"key":"S1832427424000392_ref18","doi-asserted-by":"publisher","DOI":"10.2466\/pr0.102.3.951-962"},{"key":"S1832427424000392_ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2022.01.027"},{"key":"S1832427424000392_ref6","doi-asserted-by":"publisher","DOI":"10.1017\/S0021932003002876"},{"key":"S1832427424000392_ref7","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-14-25"},{"key":"S1832427424000392_ref3","doi-asserted-by":"publisher","DOI":"10.1111\/dmcn.13616"},{"key":"S1832427424000392_ref16","doi-asserted-by":"crossref","unstructured":"Squires, J. , & Bricker, D. (2009). Ages & Stages Questionnaires\u00ae, Third Edition (ASQ- 3TM). A parent-completed child-monitoring system (3rd ed.). Brookes Publishing.","DOI":"10.1037\/t11523-000"}],"container-title":["Twin Research and Human Genetics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S1832427424000392","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,17]],"date-time":"2025-01-17T09:05:42Z","timestamp":1737104742000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S1832427424000392\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,10,28]]},"references-count":22,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2024,12]]}},"alternative-id":["S1832427424000392"],"URL":"https:\/\/doi.org\/10.1017\/thg.2024.39","relation":{},"ISSN":["1832-4274","1839-2628"],"issn-type":[{"type":"print","value":"1832-4274"},{"type":"electronic","value":"1839-2628"}],"subject":[],"published":{"date-parts":[[2024,10,28]]},"assertion":[{"value":"\u00a9 The Author(s), 2024. Published by Cambridge University Press on behalf of International Society for Twin Studies","name":"copyright","label":"Copyright","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https:\/\/creativecommons.org\/licenses\/by\/4.0\/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This content has been made available to all.","name":"free","label":"Free to read"}]}}