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Conference Paper: Effect of parental age on children's intelligence in the Southwestern China Prospective twin registry

TitleEffect of parental age on children's intelligence in the Southwestern China Prospective twin registry
Authors
Issue Date2010
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0001-8244
Citation
The 40th Annual Meeting of the Behavior Genetics Association, Seoul, Korea, 2-5 June 2010, Session 15: Paper Session: IQ, Cognitive Abilities, and Language: Part II. In Behavior Genetics, v. 40 n. 6, p. 820 How to Cite?
Abstract
Average parental age has been increasing in recent years for social and financial reasons. Previous research has shown that parental age is positively associated with increased health problems in the offspring. To assess the influence of parental age on intelligence during childhood and adolescence, we investigated twins between 6 and 16 years old in the Southwestern China Prospective Twin Registry. We assessed intelligence using the Chinese edition of Wechsler Intelligence Scale for Children-Revised (WISC-R) on 178 monozygotic and 155 dizygotic twin pairs. Advanced maternal age was not associated with increased total IQ in male and female offspring, explaining less than 1% of the variance. The heritability of total IQ was 17% (95% CI: 0–39%), with shared environment explaining 57% (95% CI: 36–73%) of the variance. Similarly, for performance IQ, the influence of parental age was not significant, with heritability accounting for 12% (95% CI: 0–38%) of the variance and shared environment 51% (95% CI: 28–67%). Paternal age was associated with higher verbal IQ, explaining approximately 2% of variance. Finally, the variance of verbal IQ was greater in females than in males, with genetic and shared environmental influences equal across the sexes.
DescriptionBehavior Genetics, v. 40 n. 6, p. 820
Persistent Identifierhttp://hdl.handle.net/10722/136029
ISSN
2013 Impact Factor: 2.839
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, XWen_US
dc.contributor.authorCherny, SS-
dc.contributor.authorHuang, Y-
dc.contributor.authorGao, X-
dc.contributor.authorXiang, Y-
dc.contributor.authorFu, YX-
dc.contributor.authorMeng, HQ-
dc.contributor.authorMa, XH-
dc.contributor.authorWang, YC-
dc.contributor.authorLi, T-
dc.contributor.authorSham, P-
dc.date.accessioned2011-07-27T02:01:43Z-
dc.date.available2011-07-27T02:01:43Z-
dc.date.issued2010en_US
dc.identifier.citationThe 40th Annual Meeting of the Behavior Genetics Association, Seoul, Korea, 2-5 June 2010, Session 15: Paper Session: IQ, Cognitive Abilities, and Language: Part II. In Behavior Genetics, v. 40 n. 6, p. 820en_US
dc.identifier.issn0001-8244-
dc.identifier.urihttp://hdl.handle.net/10722/136029-
dc.descriptionBehavior Genetics, v. 40 n. 6, p. 820-
dc.descriptionSession 15: Paper Session: IQ, Cognitive Abilities, and Language: Part II-
dc.description.abstractAverage parental age has been increasing in recent years for social and financial reasons. Previous research has shown that parental age is positively associated with increased health problems in the offspring. To assess the influence of parental age on intelligence during childhood and adolescence, we investigated twins between 6 and 16 years old in the Southwestern China Prospective Twin Registry. We assessed intelligence using the Chinese edition of Wechsler Intelligence Scale for Children-Revised (WISC-R) on 178 monozygotic and 155 dizygotic twin pairs. Advanced maternal age was not associated with increased total IQ in male and female offspring, explaining less than 1% of the variance. The heritability of total IQ was 17% (95% CI: 0–39%), with shared environment explaining 57% (95% CI: 36–73%) of the variance. Similarly, for performance IQ, the influence of parental age was not significant, with heritability accounting for 12% (95% CI: 0–38%) of the variance and shared environment 51% (95% CI: 28–67%). Paternal age was associated with higher verbal IQ, explaining approximately 2% of variance. Finally, the variance of verbal IQ was greater in females than in males, with genetic and shared environmental influences equal across the sexes.-
dc.languageengen_US
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0001-8244-
dc.relation.ispartofBehavior Geneticsen_US
dc.rightsThe original publication is available at www.springerlink.com-
dc.titleEffect of parental age on children's intelligence in the Southwestern China Prospective twin registryen_US
dc.typeConference_Paperen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0001-8244&volume=40&issue=6&spage=820&epage=&date=2010&atitle=Effect+of+parental+age+on+children%27s+intelligence+in+the+Southwestern+China+Prospective+twin+registry-
dc.identifier.emailCherny, SS: cherny@hku.hk, hku@staceycherny.orgen_US
dc.identifier.emailSham, PC: pcsham@hkucc.hku.hk-
dc.identifier.authorityCherny, SS=rp00232en_US
dc.identifier.doi10.1007/s10519-010-9392-7-
dc.identifier.hkuros188457en_US
dc.identifier.volume40en_US
dc.identifier.issue6en_US
dc.identifier.spage820en_US
dc.identifier.epage820en_US
dc.identifier.isiWOS:000284696200007-
dc.description.otherThe 40th Annual Meeting of the Behavior Genetics Association, Seoul, Korea, 2-5 June 2010, Session 15: Paper Session: IQ, Cognitive Abilities, and Language: Part II. In Behavior Genetics, v. 40 n. 6, p. 820-
dc.identifier.citeulike10409036-

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