Anthropometric differences between twins at birth and their association with later cognitive performance / Robert EVES in Journal of Child Psychology and Psychiatry, 67-10 (October 2026)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 67-10 (October 2026) . - p. 1692-1700 Titre : Anthropometric differences between twins at birth and their association with later cognitive performance Type de document : texte imprimé Auteurs : Robert EVES, Auteur ; Marco DEPPE, Auteur ; Christian KANDLER, Auteur ; Bastian MÖNKEDIEK, Auteur ; Sakari LEMOLA, Auteur Article en page(s) : p. 1692-1700 Langues : Anglais (eng) Mots-clés : Birthweight  head circumference  twin  longitudinal  cognition Index. décimale : PER Périodiques Résumé : Background Past studies indicate significant associations between birth anthropometrics, such as relative birthweight or head circumference, and later cognitive performance. Using twin data, we investigated whether these associations are confounded by genetic and environmental factors. Additionally, we determined whether the association of within twin differences in birth anthropometrics and cognitive performance is nonlinear or moderated by factors such as zygosity or age at assessment. Methods Longitudinal data from over 2000 twin pairs from the German TwinLife study were analysed using the co-twin control method. Cognitive performance was assessed at two waves, with median ages of 12 and 18?years, with z-standardised scores based on wave and age. Differences between twins in birthweight and head circumference Z scores were calculated using Fenton's size at birth chart, based on health records at birth. Results Within twin differences in relative birthweight were associated with differences in cognitive performance at Wave 1 (??=?.08, p?=?.001) and did not differ by zygosity (??=?.03, p?=?.560). However, this association was not significant when reducing the sample to twins with valid data at both waves (? = .05, p?=?.187). Testing for nonlinearity or for moderation by age at assessment did not improve model fit. Within twin differences in head circumference were not significantly associated with differences in cognitive performance in any analyses (smallest p?=?0.365). Conclusions After controlling for confounding due to genetics or the shared environment, conditions in the womb, as indexed by relative birthweight, is associated with later cognition. This association is not stronger in younger individuals. En ligne : https://doi.org/10.1111/jcpp.70170 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=593 [article] Anthropometric differences between twins at birth and their association with later cognitive performance [texte imprimé] / Robert EVES, Auteur ; Marco DEPPE, Auteur ; Christian KANDLER, Auteur ; Bastian MÖNKEDIEK, Auteur ; Sakari LEMOLA, Auteur . - p. 1692-1700. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 67-10 (October 2026) . - p. 1692-1700 Mots-clés : Birthweight  head circumference  twin  longitudinal  cognition Index. décimale : PER Périodiques Résumé : Background Past studies indicate significant associations between birth anthropometrics, such as relative birthweight or head circumference, and later cognitive performance. Using twin data, we investigated whether these associations are confounded by genetic and environmental factors. Additionally, we determined whether the association of within twin differences in birth anthropometrics and cognitive performance is nonlinear or moderated by factors such as zygosity or age at assessment. Methods Longitudinal data from over 2000 twin pairs from the German TwinLife study were analysed using the co-twin control method. Cognitive performance was assessed at two waves, with median ages of 12 and 18?years, with z-standardised scores based on wave and age. Differences between twins in birthweight and head circumference Z scores were calculated using Fenton's size at birth chart, based on health records at birth. Results Within twin differences in relative birthweight were associated with differences in cognitive performance at Wave 1 (??=?.08, p?=?.001) and did not differ by zygosity (??=?.03, p?=?.560). However, this association was not significant when reducing the sample to twins with valid data at both waves (? = .05, p?=?.187). Testing for nonlinearity or for moderation by age at assessment did not improve model fit. Within twin differences in head circumference were not significantly associated with differences in cognitive performance in any analyses (smallest p?=?0.365). Conclusions After controlling for confounding due to genetics or the shared environment, conditions in the womb, as indexed by relative birthweight, is associated with later cognition. This association is not stronger in younger individuals. En ligne : https://doi.org/10.1111/jcpp.70170 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=593

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