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Associations of eczema phenotypes with emotional and behavioural problems from birth until school age. The Generation R Study.

ABSTRACT: BACKGROUND:Eczema phenotypes and emotional and behavioural problems are highly prevalent in childhood, but their mutual relationship is not fully clear. OBJECTIVES:To examine the associations of eczema phenotypes with school-age emotional and behavioural problems, and the bidirectional associations of eczema and emotional and behavioural problems from birth until 10 years. METHODS:This study among 5265 individuals was embedded in a prospective population-based cohort study. Never, early transient, mid-transient, late transient and persistent eczema phenotypes were identified based on parent-reported, physician-diagnosed eczema from age 6 months until 10 years. Emotional (internalizing) and behavioural (externalizing) problems were measured repeatedly using the Child Behavior Checklist from age 1·5 to 10 years. Cross-lagged models were applied for bidirectional analyses. RESULTS:All eczema phenotypes were associated with more internalizing problems and attention problems at age 10 years, compared with never having eczema: range of Z-score differences 0·14 [95% confidence interval (CI) 0·01-0·27] to 0·39 (95% CI 0·18-0·60). Children with early transient eczema had more aggressive behaviour symptoms at age 10 years (Z = 0·16, 95% CI 0·05-0·27). Bidirectional analysis showed that eczema at 0-2 years was associated with more internalizing and externalizing problems at ages 3-6 and 10 years, while, inversely, only internalizing problems at 0-2 years were associated with an increased risk of eczema at age 10 years. CONCLUSIONS:Eczema phenotypes are very modestly associated with more somatic symptoms and attention problems at school age. Early transient eczema is associated with more aggressive behaviour symptoms. Directional effects seem to occur from early-life eczema to later-life internalizing and externalizing problems, rather than the reverse.

SUBMITTER: Hu C

PROVIDER: S-EPMC7496612 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Associations of eczema phenotypes with emotional and behavioural problems from birth until school age. The Generation R Study.

Hu C C Nijsten T T Pasmans S G M A SGMA de Jongste J C JC Jansen P W PW Duijts L L

The British journal of dermatology 20191225 2

<h4>Background</h4>Eczema phenotypes and emotional and behavioural problems are highly prevalent in childhood, but their mutual relationship is not fully clear.<h4>Objectives</h4>To examine the associations of eczema phenotypes with school-age emotional and behavioural problems, and the bidirectional associations of eczema and emotional and behavioural problems from birth until 10 years.<h4>Methods</h4>This study among 5265 individuals was embedded in a prospective population-based cohort study. ...[more]

PMID: 31730242

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Project description:BackgroundChildhood eczema is variable in onset and persistence.ObjectivesTo identify eczema phenotypes during childhood, and their associations with early-life environmental and genetic factors.MethodsIn this study of 5297 children from a multiethnic population-based prospective cohort study, phenotypes based on parent-reported physician-diagnosed eczema from age 6 months to 10 years were identified using latent class growth analysis. Information on environmental factors was obtained using postal questionnaires. Four filaggrin mutations were genotyped and a risk score was calculated based on 30 genetic variants. Weighted adjusted multinomial models were used for association analyses.ResultsWe identified the following five eczema phenotypes: never (76%), early transient (8%), mid-transient (6%) and late transient (8%) and persistent eczema (2%). Early transient and persistent eczema were most common in first-born children, those with a parental history of eczema, allergy or asthma and those with persistent wheezing [range of odds ratio (OR): 1.37, 95% confidence interval (CI) 1.07-1.74 and OR 3.38, 95%CI 1.95-5.85]. Early transient eczema was most common in male children only (OR 1·49, 95% CI 1·18-1·89). Children with late transient or persistent eczema were more often of Asian ethnicity (OR 2·04, 95% CI 1·14-3·65 and OR 3·08, 95% CI 1·34-7·10, respectively). Children with early, late transient and persistent eczema more often had a filaggrin mutation or additional risk alleles (range OR: 1.07, 95%CI 1.02-1.12 and OR 2.21, 95%CI 1.39-3.50). Eczema phenotypes were not associated with maternal education, breastfeeding, day care attendance and pet exposure.ConclusionsFive eczema phenotypes were identified in a multiethnic paediatric population with limited differences in risk profiles, except for sex and ethnicity. What's already known about this topic? Two previous studies in longitudinal birth cohorts identified four and six different eczema phenotypes, predominantly in children of European ethnicity. What does this study add? Five eczema phenotypes were identified in a multiethnic paediatric population using latent class growth analysis. Children with early transient and persistent eczema were most often first-born children and had persistent wheezing, filaggrin mutation or additional risk alleles. Previously known eczema risk factors had limited differentiating capabilities for eczema phenotypes, except for the association of early transient eczema with male children, and late transient and persistent eczema with Asian ethnicity.

Project description:Background and aimsHazardous drinking (i.e. alcohol consumption that places drinkers at risk for adverse health outcomes) during pregnancy is associated with adverse child outcomes. To address whether the associations are causal, we aimed to estimate the effect of maternal hazardous drinking during the first trimester on offspring emotional and behavioural problems throughout the pre-school age. We adjusted for: (1) measured confounding (e.g. smoking), (2) familial risk factors by sibling control design and (3) non-shared environmental risk factors by using hazardous drinking the 3 months before pregnancy as an instrumental variable.DesignProspective cohort study. Participants were recruited between 1999 and 2009 at ultrasound examination offered to all pregnant women in Norway. Data were collected during the 17th and the 30th weeks of gestation, and when the children were aged 1.5, 3 and 5 years.SettingNorway, 1999-2015.ParticipantsThe sample consisted of 14 639 mothers with 25 744 offspring siblings from the Norwegian Mother and Child Cohort Study.MeasurementsRespondents self-reported on: alcohol consumption, children's emotional problems (i.e. emotional reactive, anxiety/depression, somatic complaints) and children's behavioural problems (i.e. attention and aggressive behaviour) throughout pre-school age. We used longitudinal latent growth curve models to estimate the effect of maternal drinking during the first trimester on offspring emotional and behavioural problems.FindingsMost associations were strongly reduced after controlling for both familial and measured environmental risk factors. After adjustment, exposed children were more emotionally reactive [β = 2.33; 95% confidence interval (CI) = 0.13-4.53] and had more somatic complaints (β = 1.93; 95% CI = 0.09-3.77) at age 3, but not at age 5. Exposed children were less aggressive than unexposed siblings at age 5 (β = -2.27; 95% CI = -4.02 to -0.52).ConclusionsChildren exposed to their mothers' hazardous drinking during the first trimester appear to be more emotionally reactive and have more somatic complaints at age 3, but not at age 5, and are less aggressive at age 5 compared with unexposed siblings.

Project description:BackgroundAn individual's overall burden of behavioural and emotional problems across childhood is associated with increased likelihood of later mental health conditions. However, the relative extent of behavioural versus emotional problems - that is, the extent to which the domains are differentiated from one another - may provide additional information about who is at risk of developing a mental health condition. Here, we seek to validate differentiation as an independent predictor of later mental health conditions, and to explore its aetiology.MethodsWe analysed data from ~79,000 children in the population-based Norwegian Mother, Father, and Child Cohort Study, and linked health-care registries. In preregistered analyses, we modelled the extent and rate of differentiation of behavioural and emotional problems between ages 1.5-5 years, and estimated associations with later symptoms (age 8) and diagnoses (after age 8). We also explored the aetiology of differentiation by estimating associations with early life exposures and, in a subset of 23,945 full siblings, assessing the impact of accounting for unobserved familial confounding.ResultsDifferentiation of behavioural and emotional problems was associated with later symptoms and diagnoses of mental health conditions, independent of total problems. Maternal at-risk drinking (β = 0.04 [0.02, 0.06]) and parental relationship problems (β = 0.04 [0.02, 0.05]) were associated with higher behavioural relative to emotional problems at age 5. Maternal prenatal distress (|β| = 0.04 [0.03, 0.06]), concurrent distress (|β| = 0.04 [0.02, 0.06]) and parental education (|β| = 0.05 [0.04, 0.07]) predicted higher emotional relative to behavioural problems at age 5. Estimates for maternal prenatal distress and at-risk drinking were consistent across both unadjusted and adjusted analyses accounting for unobserved familial risk.ConclusionsDifferentiation of behavioural and emotional problems in early childhood represents a valid source of inter-individual variability linked to the later emergence of psychopathology and may be relevant for early detection and prevention strategies for mental health.

Dataset Information

Associations of eczema phenotypes with emotional and behavioural problems from birth until school age. The Generation R Study.

Publications

Associations of eczema phenotypes with emotional and behavioural problems from birth until school age. The Generation R Study.

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