Socio-economic disparities in the psychosocial and economic impacts of the COVID-19 pandemic on children and young people in Australia.

Aims: While COVID-19 no longer presents a global health emergency, the indirect (non-infection) impacts of the pandemic may exacerbate health inequalities in years to come. We examined the socio-economic distribution of the impacts of the pandemic on the psychosocial and economic well-being of children, young people and their families.

Methods: The CoRonavIruS Health Impact Survey (CRISIS) was conducted in seven existing longitudinal cohorts, together involving n = 3072 participants aged 0-19 years.

A pathway-based genetic score for inflammation: An indicator of vulnerability to phthalate-induced adverse neurodevelopment outcomes.

Introduction: Phthalates, chemical additives used to enhance plastic products' flexibility, are easily released into the environment, and can harm the brain development through various mechanisms including inflammation. Genetic variation influencing an individual's susceptibility to inflammation may play a role in the effects of phthalate exposure on neurodevelopment however there is no summary measure developed for genetic susceptibility to inflammation.

Methods: We developed a genetic pathway function score for inflammation (gPFS), based on the transcriptional activity of the inflammatory response pathway in the brain and other tissues.

The use of antibiotics in the management of odontogenic facial swellings in children and adolescents: A scoping review.

Objectives: To identify evidence and guidelines relating to the use of antibiotics in the management of odontogenic facial swellings in children and adolescents.

Data: Articles relating to odontogenic facial swellings in children and adolescents aged 0-16 years were included. Articles in which paediatric data could not be differentiated from adult data or where the age of participants were unknown were excluded.

Caesarean section and risk of infection in offspring: systematic review and meta-analysis of observational studies.

Objective: To compare the risk of hospital admissions with infections and infections not in hospital in children born by caesarean section with children born by vaginal birth.

Data Sources: Medline, Embase, and PubMed were searched with no restriction on start date up to 12 February 2024.

Study Selection: Observational studies were included that reported the association between caesarean section and vaginal birth in relation to the risk of infections (both those that lead to hospital admission and those that do not) up to 18 years of age.

Tracking of Vascular Measures From Infancy to Early Childhood: A Cohort Study.

Background: Atherosclerosis develops across the life course, and variation in aortic intima-media thickness (IMT) is evident from infancy onward, although most early-life data are cross-sectional. We investigated whether abdominal aortic IMT at age 6 weeks is associated with vascular measures at 4 years and the relationship of prenatal and perinatal exposures with these measures in early childhood.

Methods And Results: We analyzed data from 518 participants with 6-week and 4-year vascular measures from the Barwon Infant Study.

Causal inference in multi-cohort studies using the target trial framework to identify and minimize sources of bias.

Longitudinal cohort studies, which follow a group of individuals over time, provide the opportunity to examine causal effects of complex exposures on long-term health outcomes. Utilizing data from multiple cohorts has the potential to add further benefit by improving precision of estimates through data pooling and by allowing examination of effect heterogeneity through replication of analyses across cohorts. However, the interpretation of findings can be complicated by biases that may be compounded when pooling data, or, contribute to discrepant findings when analyses are replicated.

Predictors in Youth of Adult Cardiovascular Events.

Background And Objectives: Childhood risk factors are associated with cardiovascular events in adulthood. We compared the utility of a risk model based solely on nonlaboratory risk factors in adolescence versus a model that additionally included lipids to predict cardiovascular events in adulthood.

Methods: The study comprised 11 550 participants from 7 longitudinal cohort studies in the United States, Australia, and Finland with risk factor measurements in adolescence and followed into adulthood.

Humoral and cellular immune responses in vaccinated and unvaccinated children following SARS-CoV-2 Omicron infection.

Objectives: The immune response in children elicited by SARS-CoV-2 Omicron infection alone or in combination with COVID-19 vaccination (hybrid immunity) is poorly understood. We examined the humoral and cellular immune response following SARS-CoV-2 Omicron infection in unvaccinated children and children who were previously vaccinated with COVID-19 mRNA vaccine.

Methods: Participants were recruited as part of a household cohort study conducted during the Omicron predominant wave (Jan to July 2022) in Victoria, Australia.

polymorphisms are associated with susceptibility to Kawasaki disease but do not predict intravenous immunoglobulin resistance and coronary artery aneurysms.

Introduction: Kawasaki disease (KD) is a pediatric vasculitis that can result in coronary artery aneurysm (CAA) formation, which is a dangerous complication. Treatment with intravenous immunoglobulin (IVIg) significantly decreases the risk of CAA, possibly through competitive binding to Fc-gamma receptors (FcRs), which reduces the binding of pathological immune complexes. However, ~20% of children have recrudescence of fever and have an increased risk of CAA.

Impact of early childhood infection on child development and school performance: a population-based study.

Background: Childhood infection might be associated with adverse child development and neurocognitive outcomes, but the results have been inconsistent.

Methods: Two population-based record-linkage cohorts of all singleton children born at term in New South Wales, Australia, from 2001 to 2014, were set up and followed up to 2019 for developmental outcome (N=276 454) and school performance (N=644 291). The primary outcome was developmentally high risk (DHR) at age 4-6 years and numeracy and reading below the national minimum standard at age 7-9 years.

Association of Maternal Air Pollution Exposure and Infant Lung Function Is Modified by Genetic Propensity to Oxidative Stress.

Background And Objective: The association between air pollution and poor respiratory health outcomes is well established. Children are particularly at risk from air pollution, especially during the prenatal period as their organs and systems are still undergoing crucial development. This study investigated maternal exposure to air pollution during pregnancy and oxidative stress (OS), inflammation, and infant lung function at 4 weeks of age.

Socioeconomic adversity, maternal nutrition, and the prenatal programming of offspring cognition and language at two years of age through maternal inflammation.

Increasing rates of child neurodevelopmental vulnerability are a significant public health challenge. The adverse effect of socioeconomic adversity on offspring cognition may be mediated through elevated prenatal maternal systemic inflammation, but the role of modifiable antecedents such as maternal nutrition has not yet been clarified. This study aimed to examine (1) whether prenatal factors, with an emphasis on maternal nutrition, were associated with prenatal maternal systemic inflammation at 28 weeks' gestation, including the metabolomic marker glycoprotein acetyls (GlycA); (2) the extent to which the association between prenatal maternal nutrition and child cognition and language at age two years was mediated by elevated maternal inflammation in pregnancy; (3) the extent to which the associations between prenatal socioeconomic adversity and child neurodevelopment were mediated through prenatal maternal nutrition and GlycA levels.

Diagnostic agreement between visual examination and an automated scanner system with fluorescence for detecting and classifying occlusal carious lesions in primary teeth.

Objectives: To investigate the in vivo diagnostic agreement between visual examination (VE) using the International Caries Detection and Assessment System (ICDAS) and an automated scanner system for detecting and classifying carious lesions in primary teeth.

Methods: 5-year-old children (n = 216) underwent VE and intraoral scanning (TRIOS 4, 3Shape TRIOS A/S, Copenhagen, Denmark). Dental caries experience was recorded for each tooth surface using ICDAS.

Kawasaki Disease and Respiratory Viruses: Ecological Spatiotemporal Analysis.

Background: Kawasaki disease is an uncommon vasculitis affecting young children. Its etiology is not completely understood, although infections have been frequently postulated as the triggers. Respiratory viruses, specifically, have often been implicated as causative agents for Kawasaki disease presentations.

Risk of otitis media in offspring following maternal prenatal stress exposure.

Objectives: There is limited but consistent evidence that suggests prenatal factors, including maternal stress, may contribute to susceptibility for otitis media. We aimed to determine the effect of multiple life stress events during pregnancy on risk of acute and recurrent otitis media in offspring at three and five years of age.

Methods: Exposure data on stressful life events were collected from pregnant women in a longitudinal prospective pregnancy cohort study, at 18 and 34 weeks' gestation.

Physical activity and circulating inflammatory markers and cytokines during pregnancy: A population-based cohort study.

Introduction: Physical activity (PA) during pregnancy has numerous benefits, which may be mediated via effects on the immune system. However, supportive evidence is inconsistent and is mainly from studies in high-risk groups. We estimated the effect of PA during pregnancy on systemic inflammatory markers and cytokines in mothers recruited in the Barwon infant study.

The effects of adverse and positive experiences on cardiovascular health in Australian children.

Background: Limited evidence suggests that positive experiences in childhood may promote cardiovascular health, providing additional opportunities for prevention and early intervention. This study aimed to examine the effects of adverse and positive experiences on cardiovascular health in late childhood.

Methods: Data sources: Longitudinal Study of Australian Children (N = 1874).

Arterial structure and function in children with inflammatory bowel disease.

Background And Aim: People with inflammatory bowel disease (IBD) have an increased risk of cardiovascular disease, including in younger adulthood. This may arise in part from chronic, systemic low-grade inflammation. The process of atherosclerosis may begin in childhood.

Increased innate immune responses in adolescents with obesity and its relation to subclinical cardiovascular measures: An exploratory study.

Cardiometabolic risk accrues across the life course and childhood and adolescence are key periods for effective prevention. Obesity is associated with inflammation in adults, but pediatric data are scarce. In a cross-sectional and longitudinal study, we investigated immune cell composition and activation in 31 adolescents with obesity (41.

Impact of Distinct Antiandrogen Exposures on the Plasma Metabolome in Feminizing Gender-affirming Hormone Therapy.

Context: The plasma metabolome is a functional readout of metabolic activity and is associated with phenotypes exhibiting sexual dimorphism, such as cardiovascular disease. Sex hormones are thought to play a key role in driving sexual dimorphism.

Objective: Gender-affirming hormone therapy (GAHT) is a cornerstone of transgender care, but longitudinal changes in the plasma metabolome with feminizing GAHT have not been described.

Cord blood lipid correlation network profiles are associated with subsequent attention-deficit/hyperactivity disorder and autism spectrum disorder symptoms at 2 years: a prospective birth cohort study.

Background: Attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are neurodevelopmental conditions with early life origins. Alterations in blood lipids have been linked to ADHD and ASD; however, prospective early life data are limited. This study examined (i) associations between the cord blood lipidome and ADHD/ASD symptoms at 2 years of age, (ii) associations between prenatal and perinatal predictors of ADHD/ASD symptoms and cord blood lipidome, and (iii) mediation by the cord blood lipidome.