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Associations between biological and sociodemographic risks for developmental vulnerability in twins at age 5: a population data linkage study in Western AustraliaTo investigate the prevalence of, and associations between, prenatal and perinatal risk factors and developmental vulnerability in twins at age 5.
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Exploring genotype-phenotype relationships in the CDKL5 deficiency disorder using an international datasetCharacterized by early-onset seizures, global developmental delay and severe motor deficits, CDKL5 deficiency disorder is caused by pathogenic variants in the cyclin-dependent kinase-like 5 gene. Previous efforts to investigate genotype-phenotype relationships have been limited due to small numbers of recurrent mutations and small cohort sizes. Using data from the International CDKL5 Disorder Database we examined genotype-phenotype relationships for 13 recurrent CDKL5 variants and the previously analyzed historic variant groupings. We have applied the CDKL5 Developmental Score (CDS) and an adapted version of the CDKL5 Clinical Severity Assessment (CCSA), to grade the severity of phenotype and developmental outcomes for 285 individuals with CDKL5 variants.
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DNA methylation and body mass index from birth to adolescence: meta-analyses of epigenome-wide association studiesDNA methylation has been shown to be associated with adiposity in adulthood. However, whether similar DNA methylation patterns are associated with childhood and adolescent body mass index (BMI) is largely unknown. More insight into this relationship at younger ages may have implications for future prevention of obesity and its related traits. We examined whether DNA methylation in cord blood and whole blood in childhood and adolescence was associated with BMI in the age range from 2 to 18 years using both cross-sectional and longitudinal models.
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Associations between interpregnancy interval and preterm birth by previous preterm birth status in four high-income countries: a cohort studyTo investigate the effect of interpregnancy interval (IPI) on preterm birth (PTB) according to whether the previous birth was preterm or term.
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Lung abnormalities do not influence aerobic capacity in school children born pretermChildren born preterm have impaired lung function and altered lung structure. However, there are conflicting reports on how preterm birth impacts aerobic exercise capacity in childhood. We aimed to investigate how neonatal history and a diagnosis of bronchopulmonary dysplasia (BPD) impact the relationship between function and structure of the lung, and aerobic capacity in school-aged children born very preterm.
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The EU Child Cohort Network’s core data: establishing a set of findable, accessible, interoperable and re-usable (FAIR) variablesThe Horizon2020 LifeCycle Project is a cross-cohort collaboration which brings together data from multiple birth cohorts from across Europe and Australia to facilitate studies on the influence of early-life exposures on later health outcomes. A major product of this collaboration has been the establishment of a FAIR (findable, accessible, interoperable and reusable) data resource known as the EU Child Cohort Network. Here we focus on the EU Child Cohort Network's core variables.
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Research using population-based administration data integrated with longitudinal data in child protection settings: A systematic reviewOver the past decade there has been a marked growth in the use of linked population administrative data for child protection research. This is the first systematic review of studies to report on research design and statistical methods used where population-based administrative data is integrated with longitudinal data in child protection settings.
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How Caregivers Support Children’s Emotion Regulation: Construct Validation of the Parental Assistance With Child Emotion Regulation (PACER) QuestionnaireCaregivers play a crucial role in supporting the development of their children's emotion regulation. This study validated the Parental Assistance with Child Emotion Regulation (PACER) Questionnaire in a sample of 491 caregivers of young children ≤ 5 years.
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Educators’ Barriers and Facilitators to Physical Activity Policy Implementation in the Childcare Setting: Qualitative Findings From the Play Active ProjectWe explored childcare educators’ perceived barriers and facilitators to policy implementation in order to inform the development and implementation of an early childhood education and care (ECEC) specific physical activity policy. This study was part of the Play Active (2019-2023) project which aimed to develop, implement and evaluate evidence-based physical activity policy to improve physical activity levels in children attending ECEC.
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Is early childhood development impeded by the birth timing of the younger sibling?This study investigated whether the timing of birth of the younger siblings was associated with the risk of the older siblings’ developmental vulnerability in early childhood.