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

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TitleEffect of parental age on children's intelligence in the Southwestern China Prospective twin registry
AuthorsZhang, XW
Cherny, SS
Huang, Y
Gao, X
Xiang, Y
Fu, YX
Meng, HQ
Ma, XH
Wang, YC
Li, T
Sham, P
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
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. 820 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s10519-010-9392-7
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.
DescriptionBehavior Genetics, v. 40 n. 6, p. 820
Session 15: Paper Session: IQ, Cognitive Abilities, and Language: Part II
ISSN0001-8244
2011 Impact Factor: 2.52
2011 SCImago Journal Rankings: 0.169
DOIhttp://dx.doi.org/10.1007/s10519-010-9392-7
ISI Accession Number IDWOS:000284696200007
DC Field
Value
dc.contributor.authorZhang, XW
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.issued2010
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.descriptionBehavior Genetics, v. 40 n. 6, p. 820
dc.descriptionSession 15: Paper Session: IQ, Cognitive Abilities, and Language: Part II
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.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. 820 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s10519-010-9392-7
dc.identifier.citeulike10409036
dc.identifier.doihttp://dx.doi.org/10.1007/s10519-010-9392-7
dc.identifier.epage820
dc.identifier.hkuros188457
dc.identifier.isiWOS:000284696200007
dc.identifier.issn0001-8244
2011 Impact Factor: 2.52
2011 SCImago Journal Rankings: 0.169
dc.identifier.issue6
dc.identifier.openurl
dc.identifier.spage820
dc.identifier.urihttp://hdl.handle.net/10722/136029
dc.identifier.volume40
dc.languageeng
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 Genetics
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 registry
dc.typeConference_Paper