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Auteur Clare H. LLEWELLYN |
Documents disponibles écrits par cet auteur (2)



Food fussiness and food neophobia share a common etiology in early childhood / Andrea D. SMITH in Journal of Child Psychology and Psychiatry, 58-2 (February 2017)
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Titre : Food fussiness and food neophobia share a common etiology in early childhood Type de document : Texte imprimé et/ou numérique Auteurs : Andrea D. SMITH, Auteur ; Moritz HERLE, Auteur ; Alison FILDES, Auteur ; Lucy COOKE, Auteur ; Silje STEINSBEKK, Auteur ; Clare H. LLEWELLYN, Auteur Année de publication : 2017 Article en page(s) : p.189-196 Langues : Anglais (eng) Mots-clés : Eating behavior twin design behavioral genetics food fussiness food neophobia Index. décimale : PER Périodiques Résumé : Background ‘Food fussiness’ (FF) is the tendency to be highly selective about which foods one is willing to eat, and emerges in early childhood; ‘food neophobia’ (FN) is a closely related characteristic but specifically refers to rejection of unfamiliar food. These behaviors are associated, but the extent to which their etiological architecture overlaps is unknown. The objective of this study was to quantify the relative contribution of genetic and environmental influences to variation in FF and FN in early childhood; and to establish the extent to which they share common genetic and environmental influences. Method Participants were 1,921 families with 16-month-old twins from the Gemini birth cohort. Parents completed the Child Eating Behaviour Questionnaire which included three FF items and four FN items. Bivariate quantitative genetic modeling was used to quantify: (a) genetic and environmental contributions to variation in FF and FN; and (b) the extent to which genetic or environmental influences on FF and FN are shared across the traits. Results Food fussiness and FN were strongly correlated (r = .72, p < .001). Proportions of variation in FF were equally explained by genetic (.46; 95% CI: 0.41–0.52) and shared environmental influences (.46; 95% CI: 0.41–0.51). Shared environmental effects accounted for a significantly lower proportion of variation in FN (.22; 95% CI: 0.14–0.30), but genetic influences were not significantly different from those on FF (.58, 95% CI: 0.50–0.67). FF and FN largely shared a common etiology, indicated by high genetic (.73; 95% CI: 0.67–0.78) and shared environmental correlations (.78; 95% CI: 0.69–0.86) across the two traits. Conclusions Food fussiness and FN both show considerable heritability at 16 months but shared environmental factors, for example the home environment, influenced more interindividual differences in the expression of FF than in FN. FF and FN largely share a common etiology. En ligne : http://dx.doi.org/10.1111/jcpp.12647 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=299
in Journal of Child Psychology and Psychiatry > 58-2 (February 2017) . - p.189-196[article] Food fussiness and food neophobia share a common etiology in early childhood [Texte imprimé et/ou numérique] / Andrea D. SMITH, Auteur ; Moritz HERLE, Auteur ; Alison FILDES, Auteur ; Lucy COOKE, Auteur ; Silje STEINSBEKK, Auteur ; Clare H. LLEWELLYN, Auteur . - 2017 . - p.189-196.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 58-2 (February 2017) . - p.189-196
Mots-clés : Eating behavior twin design behavioral genetics food fussiness food neophobia Index. décimale : PER Périodiques Résumé : Background ‘Food fussiness’ (FF) is the tendency to be highly selective about which foods one is willing to eat, and emerges in early childhood; ‘food neophobia’ (FN) is a closely related characteristic but specifically refers to rejection of unfamiliar food. These behaviors are associated, but the extent to which their etiological architecture overlaps is unknown. The objective of this study was to quantify the relative contribution of genetic and environmental influences to variation in FF and FN in early childhood; and to establish the extent to which they share common genetic and environmental influences. Method Participants were 1,921 families with 16-month-old twins from the Gemini birth cohort. Parents completed the Child Eating Behaviour Questionnaire which included three FF items and four FN items. Bivariate quantitative genetic modeling was used to quantify: (a) genetic and environmental contributions to variation in FF and FN; and (b) the extent to which genetic or environmental influences on FF and FN are shared across the traits. Results Food fussiness and FN were strongly correlated (r = .72, p < .001). Proportions of variation in FF were equally explained by genetic (.46; 95% CI: 0.41–0.52) and shared environmental influences (.46; 95% CI: 0.41–0.51). Shared environmental effects accounted for a significantly lower proportion of variation in FN (.22; 95% CI: 0.14–0.30), but genetic influences were not significantly different from those on FF (.58, 95% CI: 0.50–0.67). FF and FN largely shared a common etiology, indicated by high genetic (.73; 95% CI: 0.67–0.78) and shared environmental correlations (.78; 95% CI: 0.69–0.86) across the two traits. Conclusions Food fussiness and FN both show considerable heritability at 16 months but shared environmental factors, for example the home environment, influenced more interindividual differences in the expression of FF than in FN. FF and FN largely share a common etiology. En ligne : http://dx.doi.org/10.1111/jcpp.12647 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=299 Nature and nurture in fussy eating from toddlerhood to early adolescence: findings from the Gemini twin cohort / Zeynep Nas ; Moritz HERLE ; Alice R. KININMONTH ; Andrea D. SMITH ; Rachel BRYANT-WAUGH ; Alison FILDES ; Clare H. LLEWELLYN in Journal of Child Psychology and Psychiatry, 66-2 (February 2025)
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[article]
Titre : Nature and nurture in fussy eating from toddlerhood to early adolescence: findings from the Gemini twin cohort : Journal of Child Psychology and Psychiatry Type de document : Texte imprimé et/ou numérique Auteurs : Zeynep Nas, Auteur ; Moritz HERLE, Auteur ; Alice R. KININMONTH, Auteur ; Andrea D. SMITH, Auteur ; Rachel BRYANT-WAUGH, Auteur ; Alison FILDES, Auteur ; Clare H. LLEWELLYN, Auteur Article en page(s) : p.241-252 Langues : Anglais (eng) Mots-clés : Longitudinal studies twins eating behaviour Index. décimale : PER Périodiques Résumé : Background Food fussiness (FF) describes the tendency to eat a small range of foods, due to pickiness and/or reluctance to try new foods. A common behaviour during childhood, and a considerable cause of caregiver concern; its causes are poorly understood. This is the first twin study of genetic and environmental contributions to the developmental trajectory of FF from toddlerhood to early adolescence, and stability and change over time. Methods Participants were from Gemini, a population-based British cohort of n?=?4,804 twins born in 2007. Parents reported on FF using the Child Eating Behaviour Questionnaire ?FF? scale when children were 16?months (n?=?3,854), 3 (n?=?2,666), 5 (n?=?2,098), 7 (n?=?703), and 13?years old (n?=?970). A mixed linear model examined the trajectory of FF, and a correlated factors twin model quantified genetic and environmental contributions to variation in and covariation between trajectory parameters. A longitudinal Cholesky twin model examined genetic and environmental influences on FF at each discrete age. Results We modelled a single FF trajectory for all children, which was characterised by increases from 16?months to 7?years, followed by a slight decline from 7 to 13?years. All trajectory parameters were under strong genetic influence (>70%) that was largely shared, indicated by high genetic correlations. Discrete age analyses showed that genetic influence on FF increased significantly after toddlerhood (16?months: 60%, 95% CI: 53%?67%; 3?years: 83%; 81%?86%), with continuing genetic influence as indicated by significant genetic overlap across every age. Shared environmental influences were only significant during toddlerhood. Unique environmental influences explained 15%?26% of the variance over time, with some enduring influence from 5?years onwards. Conclusions Individual differences in FF were largely explained by genetic factors at all ages. Fussy eating also shows a significant proportion of environmental influence, especially in toddlerhood, and may, therefore, benefit from early interventions throughout childhood. Future work needs to refine the FF trajectory and explore specific trajectory classes. En ligne : https://doi.org/10.1111/jcpp.14053 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=545
in Journal of Child Psychology and Psychiatry > 66-2 (February 2025) . - p.241-252[article] Nature and nurture in fussy eating from toddlerhood to early adolescence: findings from the Gemini twin cohort : Journal of Child Psychology and Psychiatry [Texte imprimé et/ou numérique] / Zeynep Nas, Auteur ; Moritz HERLE, Auteur ; Alice R. KININMONTH, Auteur ; Andrea D. SMITH, Auteur ; Rachel BRYANT-WAUGH, Auteur ; Alison FILDES, Auteur ; Clare H. LLEWELLYN, Auteur . - p.241-252.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 66-2 (February 2025) . - p.241-252
Mots-clés : Longitudinal studies twins eating behaviour Index. décimale : PER Périodiques Résumé : Background Food fussiness (FF) describes the tendency to eat a small range of foods, due to pickiness and/or reluctance to try new foods. A common behaviour during childhood, and a considerable cause of caregiver concern; its causes are poorly understood. This is the first twin study of genetic and environmental contributions to the developmental trajectory of FF from toddlerhood to early adolescence, and stability and change over time. Methods Participants were from Gemini, a population-based British cohort of n?=?4,804 twins born in 2007. Parents reported on FF using the Child Eating Behaviour Questionnaire ?FF? scale when children were 16?months (n?=?3,854), 3 (n?=?2,666), 5 (n?=?2,098), 7 (n?=?703), and 13?years old (n?=?970). A mixed linear model examined the trajectory of FF, and a correlated factors twin model quantified genetic and environmental contributions to variation in and covariation between trajectory parameters. A longitudinal Cholesky twin model examined genetic and environmental influences on FF at each discrete age. Results We modelled a single FF trajectory for all children, which was characterised by increases from 16?months to 7?years, followed by a slight decline from 7 to 13?years. All trajectory parameters were under strong genetic influence (>70%) that was largely shared, indicated by high genetic correlations. Discrete age analyses showed that genetic influence on FF increased significantly after toddlerhood (16?months: 60%, 95% CI: 53%?67%; 3?years: 83%; 81%?86%), with continuing genetic influence as indicated by significant genetic overlap across every age. Shared environmental influences were only significant during toddlerhood. Unique environmental influences explained 15%?26% of the variance over time, with some enduring influence from 5?years onwards. Conclusions Individual differences in FF were largely explained by genetic factors at all ages. Fussy eating also shows a significant proportion of environmental influence, especially in toddlerhood, and may, therefore, benefit from early interventions throughout childhood. Future work needs to refine the FF trajectory and explore specific trajectory classes. En ligne : https://doi.org/10.1111/jcpp.14053 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=545