Concurrent and longitudinal associations of developmental language disorder with peer victimization in adolescence: evidence from a co-twin study / Kate NATION ; Kai Xiang LIM ; Jean-Baptiste PINGAULT ; Lucy BOWES in Journal of Child Psychology and Psychiatry, 65-10 (October 2024)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 65-10 (October 2024) . - p.1283-1298 Titre : Concurrent and longitudinal associations of developmental language disorder with peer victimization in adolescence: evidence from a co-twin study Type de document : texte imprimé Auteurs : Kate NATION, Auteur ; Kai Xiang LIM, Auteur ; Jean-Baptiste PINGAULT, Auteur ; Lucy BOWES, Auteur Article en page(s) : p.1283-1298 Langues : Anglais (eng) Mots-clés : Developmental language disorder  bullying victimization  behavioral genetics  pragmatic language  adolescence Index. décimale : PER Périodiques Résumé : Background Children with developmental language disorder (DLD) experience higher levels of peer victimization than their peers. However, it is not known if such associations reflect genetic and environmental confounding. We used a co-twin control design to investigate the association of language difficulties (DLD and separately poor pragmatic language) with peer victimization and compare the developmental trajectories of peer victimization across adolescence for those with and without language difficulties. Methods Participants were 3,400 pairs of twins in the Twins Early Development Study (TEDS), a UK-based population birth cohort. Language abilities were assessed via online tests at age 11 and peer victimization was self-reported at ages 11, 14 and 16. Language difficulties were defined as language abilities at least 1.25 SD below the mean of the TEDS sample. We performed linear regressions and latent growth curve modeling at a population level and within monozygotic and same-sex dizygotic twin pairs. Results At population level, youth with DLD experienced higher levels of peer victimization at ages 11 (? 0.27, 95% Confidence Interval (CI) 0.20 0.35), 14 (? 0.15, 95% CI 0.03 0.27) and 16 (? 0.17, 95% CI 0.03 0.32) and a sharper decline in peer victimization between ages 11 and 16 compared to their peers without DLD. The associations between DLD and peer victimization were reduced in strength and not statistically significant in within-twin models. Moreover, there was no difference in the rate of change in peer victimization between twin pairs discordant for DLD. Results were similar for the association of poor pragmatic language with peer victimization. Conclusions Associations between language difficulties (DLD and separately, poor pragmatic language) and peer victimization were confounded by genetic and shared environmental factors. Identifying specific factors underlying these associations is important for guiding future work to reduce peer victimization among adolescents with language difficulties. En ligne : https://doi.org/10.1111/jcpp.13969 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535 [article] Concurrent and longitudinal associations of developmental language disorder with peer victimization in adolescence: evidence from a co-twin study [texte imprimé] / Kate NATION, Auteur ; Kai Xiang LIM, Auteur ; Jean-Baptiste PINGAULT, Auteur ; Lucy BOWES, Auteur . - p.1283-1298. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 65-10 (October 2024) . - p.1283-1298 Mots-clés : Developmental language disorder  bullying victimization  behavioral genetics  pragmatic language  adolescence Index. décimale : PER Périodiques Résumé : Background Children with developmental language disorder (DLD) experience higher levels of peer victimization than their peers. However, it is not known if such associations reflect genetic and environmental confounding. We used a co-twin control design to investigate the association of language difficulties (DLD and separately poor pragmatic language) with peer victimization and compare the developmental trajectories of peer victimization across adolescence for those with and without language difficulties. Methods Participants were 3,400 pairs of twins in the Twins Early Development Study (TEDS), a UK-based population birth cohort. Language abilities were assessed via online tests at age 11 and peer victimization was self-reported at ages 11, 14 and 16. Language difficulties were defined as language abilities at least 1.25 SD below the mean of the TEDS sample. We performed linear regressions and latent growth curve modeling at a population level and within monozygotic and same-sex dizygotic twin pairs. Results At population level, youth with DLD experienced higher levels of peer victimization at ages 11 (? 0.27, 95% Confidence Interval (CI) 0.20 0.35), 14 (? 0.15, 95% CI 0.03 0.27) and 16 (? 0.17, 95% CI 0.03 0.32) and a sharper decline in peer victimization between ages 11 and 16 compared to their peers without DLD. The associations between DLD and peer victimization were reduced in strength and not statistically significant in within-twin models. Moreover, there was no difference in the rate of change in peer victimization between twin pairs discordant for DLD. Results were similar for the association of poor pragmatic language with peer victimization. Conclusions Associations between language difficulties (DLD and separately, poor pragmatic language) and peer victimization were confounded by genetic and shared environmental factors. Identifying specific factors underlying these associations is important for guiding future work to reduce peer victimization among adolescents with language difficulties. En ligne : https://doi.org/10.1111/jcpp.13969 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535

The role of birth weight on the causal pathway to child and adolescent ADHD symptomatology: a population-based twin differences longitudinal design / Kai Xiang LIM in Journal of Child Psychology and Psychiatry, 59-10 (October 2018)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 59-10 (October 2018) . - p.1036-1043 Titre : The role of birth weight on the causal pathway to child and adolescent ADHD symptomatology: a population-based twin differences longitudinal design Type de document : texte imprimé Auteurs : Kai Xiang LIM, Auteur ; Chao-Yu LIU, Auteur ; Tabea SCHOELER, Auteur ; Charlotte A.M. CECIL, Auteur ; Edward D. BARKER, Auteur ; Essi VIDING, Auteur ; Corina U. GREVEN, Auteur ; Jean-Baptiste PINGAULT, Auteur Article en page(s) : p.1036-1043 Langues : Anglais (eng) Mots-clés : Attention-deficit/hyperactivity disorder birth weight hyperactivity/impulsivity inattention twin differences Index. décimale : PER Périodiques Résumé : BACKGROUND: Available evidence points towards lower birth weight as a risk factor for the development of attention deficit/hyperactivity disorder (ADHD) symptoms. We probed the causal nature of this putative effect of birth weight on ADHD symptoms using the twin differences design, which accounts for genetic and shared environmental confounds. METHOD: In a large population-based twin sample - 3,499 monozygotic (MZ) and 6,698 dizygotic (DZ) pairs - parents, teachers or twins rated the twins' ADHD symptoms at nine assessment waves (2-16 years). We implemented the twin differences design, which completely accounts for shared environmental and genetic confounding in MZ twins. We tested whether: (a) the lighter-born twins had elevated ADHD symptoms compared to the heavier-born twins, by regressing within-pair differences of ADHD symptoms on within-pair differences of birth weight among MZ twins; (b) the effect of birth weight on ADHD was moderated by gender, gestational age and low birth weight; (c) this effect changed with age at ADHD assessment using adapted latent growth curve models; and (d) results differed for inattention and hyperactivity/impulsivity. RESULTS: Birth weight significantly predicted ADHD symptoms from early childhood to late adolescence. The lighter-born twin had more ADHD symptoms than the heavier-born cotwin among MZ twins across assessment waves and raters. No moderation effect was detected. The magnitude of the effect of birth weight decreased significantly across time for hyperactivity/impulsivity, but the decrease failed to reach significance for inattention. Estimates for inattention were significantly larger than for hyperactivity/impulsivity at each time point, implying stronger effect of birth weight on inattention symptoms. CONCLUSIONS: Our findings provide stringent evidence for environmental effect of lower birth weight on the causal pathway to elevated ADHD symptoms. Effect of birth weight persists across a 14-year period from childhood into late adolescence, in particular for inattention symptoms. En ligne : http://dx.doi.org/10.1111/jcpp.12949 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=369 [article] The role of birth weight on the causal pathway to child and adolescent ADHD symptomatology: a population-based twin differences longitudinal design [texte imprimé] / Kai Xiang LIM, Auteur ; Chao-Yu LIU, Auteur ; Tabea SCHOELER, Auteur ; Charlotte A.M. CECIL, Auteur ; Edward D. BARKER, Auteur ; Essi VIDING, Auteur ; Corina U. GREVEN, Auteur ; Jean-Baptiste PINGAULT, Auteur . - p.1036-1043. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 59-10 (October 2018) . - p.1036-1043 Mots-clés : Attention-deficit/hyperactivity disorder birth weight hyperactivity/impulsivity inattention twin differences Index. décimale : PER Périodiques Résumé : BACKGROUND: Available evidence points towards lower birth weight as a risk factor for the development of attention deficit/hyperactivity disorder (ADHD) symptoms. We probed the causal nature of this putative effect of birth weight on ADHD symptoms using the twin differences design, which accounts for genetic and shared environmental confounds. METHOD: In a large population-based twin sample - 3,499 monozygotic (MZ) and 6,698 dizygotic (DZ) pairs - parents, teachers or twins rated the twins' ADHD symptoms at nine assessment waves (2-16 years). We implemented the twin differences design, which completely accounts for shared environmental and genetic confounding in MZ twins. We tested whether: (a) the lighter-born twins had elevated ADHD symptoms compared to the heavier-born twins, by regressing within-pair differences of ADHD symptoms on within-pair differences of birth weight among MZ twins; (b) the effect of birth weight on ADHD was moderated by gender, gestational age and low birth weight; (c) this effect changed with age at ADHD assessment using adapted latent growth curve models; and (d) results differed for inattention and hyperactivity/impulsivity. RESULTS: Birth weight significantly predicted ADHD symptoms from early childhood to late adolescence. The lighter-born twin had more ADHD symptoms than the heavier-born cotwin among MZ twins across assessment waves and raters. No moderation effect was detected. The magnitude of the effect of birth weight decreased significantly across time for hyperactivity/impulsivity, but the decrease failed to reach significance for inattention. Estimates for inattention were significantly larger than for hyperactivity/impulsivity at each time point, implying stronger effect of birth weight on inattention symptoms. CONCLUSIONS: Our findings provide stringent evidence for environmental effect of lower birth weight on the causal pathway to elevated ADHD symptoms. Effect of birth weight persists across a 14-year period from childhood into late adolescence, in particular for inattention symptoms. En ligne : http://dx.doi.org/10.1111/jcpp.12949 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=369

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