Are ADHD trajectories shaped by the social environment? A longitudinal study of maternal influences on the preschool origins of delay aversion.

Background: Attention-deficit/hyperactivity disorder (ADHD) is commonly attributed to neuro-cognitive deficits of genetic and/or prenatal/perinatal environmental origins. Sonuga-Barke proposed an alternative formulation, suggesting that ADHD behaviors are functional expressions of delay aversion-a strong motivational disposition to avoid or escape negative affective states evoked by delay. It is hypothesized that the strength of this disposition, though neuro-biologically rooted, is exacerbated by early negative social interactions during waiting-related encounters.

International workshop: what is needed to ensure outcome measures for Rett syndrome are fit-for-purpose for clinical trials? June 7, 2023, Nashville, USA.

Introduction: The clinical, research and advocacy communities for Rett syndrome are striving to achieve clinical trial readiness, including having fit-for-purpose clinical outcome assessments. This study aimed to (1) describe psychometric properties of clinical outcome assessment for Rett syndrome and (2) identify what is needed to ensure that fit-for-purpose clinical outcome assessments are available for clinical trials.

Methods: Clinical outcome assessments for the top 10 priority domains identified in the Voice of the Patient Report for Rett syndrome were compiled and available psychometric data were extracted.

Measuring the Burden of Epilepsy Hospitalizations in CDKL5 Deficiency Disorder.

Background: Information on the hospital service use among individuals with CDKL5 Deficiency Disorder, an ultrarare developmental epileptic encephalopathy, is limited, evidence of which could assist with service planning. Therefore, using baseline and longitudinal data on 379 genetically verified individuals in the International CDKL5 Disorder Database, we aimed to investigate rates of seizure-related and other hospitalizations and associated length of stay in this cohort.

Methods: Outcome variables were lifetime count of family-reported hospitalizations and average length of stay both for seizure- (management and/or investigative) and non-seizure-related causes.

Hospitalizations Following Complex Hip Surgery in Children with Intellectual Disability: A Self-Controlled Case Series Analysis.

Objectiv: To evaluate the associations between complex hip surgery and subsequent hospitalizations in children with intellectual disability, including a subset of children with cerebral palsy.

Study Design: We: conducted a retrospective cohort study using linked administrative, health, and disability data from Western Australia. Children born between 1983 and 2009 who underwent complex hip surgery by end 2014 were included (intellectual disability, n=154; subset with cerebral palsy, n=91).

Comparing home polysomnography with transcutaneous CO monitoring to laboratory polysomnography in children with neuromuscular disorders.

Study Objectives: Clinical utility of home polysomnography in children with neuromuscular disorders is limited by lack of evidence that sleep-disordered breathing can be reliably identified and inability to diagnose hypoventilation as carbon dioxide is not measured.

Methods: This study aimed to determine feasibility, accuracy and parent satisfaction for home polysomnography performed with a Type 2 portable monitoring device and a transcutaneous CO monitor. Results of laboratory and home polysomnography were compared with Mann-Whitney U tests and random intercept regression models.