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Aim: To compare the mental health and neurodevelopmental profiles of school‐age children born very preterm, with and without an anxiety disorder, and to identify neonatal medical, psychosocial, and concurrent neurodevelopmental correlates. Method: A regional cohort of 102 (51 males, 51 females) children born very preterm (mean [SD] gestation at birth=28wks [2], range=23–31wks) was studied from birth to age 9 years alongside a comparison group of 109 (58 males, 51 females) children born at term (mean [SD] gestation at birth=40wks [1], range=38–41wks). At age 9 years, all children underwent a neurodevelopmental evaluation while parents were interviewed using the Development and Well‐Being Assessment to diagnose a range of DSM‐IV childhood psychiatric disorders. Detailed information was also available about the children's neonatal medical course and postnatal psychosocial environment, including maternal mental health and parenting. Results: At age 9 years, 21% (n=21) of very preterm and 13% (n=14) of term‐born children met diagnostic criteria for an anxiety disorder. Clinically‐anxious children born very preterm were characterized by higher rates of comorbid mental health (odds ratio [OR]=11.5, 95% confidence interval [CI]=3.8–34.7), social (OR=6.2, 95% CI=2.1–18.4), motor (OR=4.4, 95% CI=1.6–12.2), and cognitive (OR=2.6, 95% CI=1.0–7.0) problems than those without an anxiety disorder. Concurrent maternal mental health and child social difficulties were the strongest independent correlates of early‐onset child anxiety disorders. Interpretation: Children born very preterm who developed an early‐onset anxiety disorder were subject to high rates of comorbid problems. Findings highlight the importance of addressing both maternal and child mental health issues to optimize outcomes in this high‐risk population. What this paper addsOne out of five school‐age children born very preterm are likely to meet DSM‐IV diagnostic criteria for an anxiety disorder.Half of these children born very preterm with an early‐onset anxiety disorder have comorbid attention‐deficit/hyperactivity disorder.Other neurodevelopmental correlates of early‐onset anxiety disorders include lower cognitive ability, motor problems, and peer social difficulties.Concurrent maternal mental health and child social adjustment problems were the strongest correlates of early‐onset anxiety disorder risk among children born very preterm. What this paper adds: One out of five school‐age children born very preterm are likely to meet DSM‐IV diagnostic criteria for an anxiety disorder.Half of these children born very preterm with an early‐onset anxiety disorder have comorbid attention‐deficit/hyperactivity disorder.Other neurodevelopmental correlates of early‐onset anxiety disorders include lower cognitive ability, motor problems, and peer social difficulties.Concurrent maternal mental health and child social adjustment problems were the strongest correlates of early‐onset anxiety disorder risk among children born very preterm. This article is commented on by Hunter on page 892 of this issue. [ABSTRACT FROM AUTHOR]

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Extreme weather events (EWEs) are increasing in frequency and severity as the planet continues to become warmer. Resulting disasters have the potential to wreak havoc on the economy, infrastructure, family unit, and human health. Global estimates project that children will be disproportionately impacted by the changing climate - shouldering 88% of the related burdens. Exposure to EWEs in childhood is traumatic, with ramifications for mental health specifically. Symptoms of posttraumatic stress, depression, and anxiety have all been associated with childhood EWE exposure and have the potential to persist under certain circumstances. Conversely, many childhood survivors of EWE also demonstrate resilience and experience only transient symptoms. While the majority of studies are focused on the effects resulting from one specific type of disaster (hurricanes), we have synthesized the literature across the various types of EWEs. We describe psychological symptoms and behavior, the potential for long-term effects, and potential protective factors and risk factors. What this paper adds Climate change-related phenomena such as extreme weather events (EWEs) have the potential to impact mood and behavior in children. Posttraumatic stress (PTS) is the most common mental health consequence in child survivors of EWEs. PTS is often comorbid with depression and/or anxiety in this group. [ABSTRACT FROM AUTHOR]

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Aim: To: (1) investigate the relationship between upper-limb impairment and health-related quality of life (HRQoL) for children with cerebral palsy and (2) develop a mapping algorithm from the Cerebral Palsy Quality of Life Questionnaire for Children (CPQoL-Child) onto the Child Health Utility 9D (CHU9D) measure.Method: The associations between physical and upper-limb classifications and HRQoL of 76 children (40 females, 36 males) aged 6 to 15 years (mean age 9 years 7 months [SD 3y]) were assessed. Five statistical techniques were developed and tested, which predicted the CHU9D scores from the CPQoL-Child total/domain scores, age, and sex.Results: Most participants had mild impairments. The Manual Ability Classification System (MACS) level was significantly negatively correlated with CHU9D and CPQoL-Child (r=-0.388 and r=-0.464 respectively). There was a negative correlation between the Neurological Hand Deformity Classification (NHDC) and CPQoL-Child (r=-0.476, p<0.05). The generalized linear model with participation, pain domain, and age had the highest predictive accuracy.Interpretation: The weak negative correlations between classification levels and HRQoL measures may be explained by the restricted range of impairment levels of the participants. The MACS and NHDC explained the impact of upper-limb impairment on HRQoL better than the other classifications. The generalized linear model with participation, pain, and age is the suggested mapping algorithm. The suggested mapping algorithm will facilitate the use of CPQoL-Child for economic evaluation and can be used to conduct cost-utility analyses.What This Paper Adds: The Manual Ability Classification System and Neurological Hand Deformity Classification were the best predictors of health-related quality of life measures. Age and Cerebral Palsy Quality of Life Questionnaire for Children participation and pain domain scores can predict Child Health Utility 9D scores. [ABSTRACT FROM AUTHOR]

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Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Rett syndrome (RTT) is an X-linked neurogenetic disorder caused by mutations of the MECP2 (methyl-CpG-binding protein 2) gene. Over two decades of work established MeCP2 as a protein with pivotal roles in the regulation of the epigenome, neuronal physiology, synaptic maintenance, and behaviour. Given the genetic aetiology of RTT and the proof of concept of its reversal in a mouse model, considerable efforts have been made to design therapeutic approaches to re-express MeCP2. By being at the forefront of the development of innovative gene therapies, research on RTT is of paramount importance for the treatment of monogenic neurological diseases. Here we discuss the recent advances and challenges of promising genetic strategies for the treatment of RTT including gene replacement therapies, gene/RNA editing strategies, and reactivation of the silenced X chromosome. WHAT THIS PAPER ADDS: Recent advances shed light on the promises of gene replacement therapy with new vectors designed to control the levels of MeCP2 expression. New developments in DNA/RNA editing approaches or reactivation of the silenced X chromosome open the possibility to re-express the native MeCP2 locus at endogenous levels. Current strategies still face limitations in transduction efficiency and future work is needed to improve brain delivery.

Aim: To investigate the efficacy of psychological interventions delivered to mothers of young children with autism spectrum disorder (ASD) in improving maternal mental health and the parent–child relationship. Method: Electronic databases were searched from inception to December 2021. Studies were included if they were randomized controlled trials (RCTs) of psychological interventions that targeted maternal mental health (primary outcome) and/or the parent–child relationship (secondary outcome), delivered to mothers of children (mean age < 60 months) with ASD. Meta‐analyses of three parent mental health outcomes (stress, depressive symptomatology, and general mental health) and seven parent–child relationship outcomes (parent responsiveness, affect, directiveness, non‐directiveness, child initiation, infant positive affect, and infant attentiveness) were conducted using both mean and standardized mean differences. Results: Thirty‐two RCTs met the inclusion criteria (2336 participants). Six RCTs showed improved maternal mental health (Cohen's d = 0.41–1.15), with moderate certainty of evidence for improvement in parental stress. There was low and high certainty of evidence of treatment effect on parental depressive symptoms and general mental health respectively, which did not show significant treatment effects post‐intervention. Seventeen RCTs showed improved parent–child relationship (d = 0.33–2.28; low certainty of evidence). Interpretation: Results demonstrated that parenting interventions promoting responsiveness had the largest positive effect on the parent–child relationship and a moderate effect on overall parenting stress; however, the studies were heterogeneous, making it difficult to identify the intervention components that were responsible for the positive treatment effects. There was no significant treatment effect for studies targeting depression or general mental health, likely due to the lack of an interventional component directly targeting mental health. [ABSTRACT FROM AUTHOR]

Aim: To identify the highest‐priority clinical research areas related to children with neurological impairment and medical complexity among clinicians and caregivers. Method: A modified, three‐stage Delphi study using online surveys and guided by a steering committee was completed. In round 1, clinicians and family caregivers suggested clinical topics and related questions that require research to support this subgroup of children. After refinement of the suggestions by the steering committee, participants contributed to 1 (family caregivers) or 2 (clinicians) subsequent rounds to develop a prioritized list. Results: A diverse international expert panel consisting of 49 clinicians and 12 family caregivers provided 601 responses. Responses were distilled into 26 clinical topics comprising 126 related questions. The top clinical topics prioritized for research were irritability and pain, child mental health, disorders of tone, polypharmacy, sleep, aspiration, behavior, dysautonomia, and feeding intolerance. The clinician expert panel also prioritized 10 specific research questions. Interpretation: Study findings support a research agenda for children with neurological impairment and medical complexity focused on addressing clinical questions, prioritized by an international group of clinicians and caregivers. This original article is commented by Becker‐Barroso on page 145 of this issue. [ABSTRACT FROM AUTHOR]

Aim: To examine the evolution of child-parent discrepancy in reporting quality of life (QoL) between childhood and adolescence in children with cerebral palsy (CP) and to investigate potential factors associated with such a discrepancy.Method: We used data from the SPARCLE (Study of PARticipation of Children with CP Living in Europe) study, a population-based cohort study of children with CP, aged 8 to 12 years at baseline (in 2004-2005), in nine European centres, who were followed up at the age of 13 to 17 years. The KIDSCREEN-52 Quality of Life measure was used at baseline and follow-up; 354 child-parent dyads out of 500 eligible dyads were followed up (201 males, 153 females). We used intraclass correlation coefficients (ICCs) to examine agreement between parent proxy-reports and self-reported QoL. We used linear regression to examine factors associated with child-parent discrepancy in QoL reporting.Results: Agreement was low to moderate (ICC=0.16-0.48) in childhood and in adolescence across all QoL domains. In four domains (moods and emotions, self-perception, relationship with parents and home life, and social support and peers), the extent of the discrepancy increased significantly between childhood and adolescence. Parenting stress, child pain, and child behaviour problems influenced parent proxy-reports during both childhood and adolescence.Interpretation: The points of view of the child and their parents should be treated as complementary to obtain better knowledge regarding the QoL of children and adolescents with CP. [ABSTRACT FROM AUTHOR]

Aim: To investigate which families with young children with disabilities used disability services and when they used services to inform policy on service delivery.Method: We used linked administrative data from different ministries in Alberta to describe families' use of disability services when their children were between the ages of 3 and 8 years old. Disability was investigated on the basis of the presence of a severe special education code for children, and level of special education code. The outcome was the use of family disability services.Results: Of 31 346 children, 24 761 (79.0%) had no special education code, 3982 (12.7%) had a mild special education code, and 2603 (8.3%) had a severe special education code. Level of special education code was associated with child characteristics and service use. Children with severe special education codes generally were more likely to report service use and have poor outcomes than those with less severe codes. Of note, 26% of children with severe special education codes used family disability services. In addition, among children with severe special education codes, many years of severe coding (compared with fewer years) had the strongest association with family disability service use (prevalence ratio 5.50; 95% confidence interval 4.10-7.37). Associations with family disability service use were seen with mental health, health care, and educational achievement. Interactions between child characteristics and service use were observed.Interpretation: This study provides evidence that families were more likely to use disability services when they were involved with other services, and that use interacts with various factors. The findings highlight the importance of considering service eligibility, referral, and integration. [ABSTRACT FROM AUTHOR]

This commentary is on the systematic review by Barreto et al. on pages 163–168 of this issue. [ABSTRACT FROM AUTHOR]

This commentary is on the original article by Reid et al. on pages 1159–1167 of this issue. [ABSTRACT FROM AUTHOR]

Aim: Childhood stroke disrupts brain development and emerging neural networks. Motor, cognitive, and language deficits are well recognized, yet little is known about psychosocial function after childhood stroke. This study aims to describe psychosocial function within the first year after childhood stroke, and to identify factors associated with outcome.Method: Thirty-seven children were involved in a prospective, longitudinal study investigating recovery over the first year after childhood stroke. Children's social functioning was assessed at 6-months and 12-months poststroke and psychological function at 12-months poststroke, using standardized measures.Results: Mean social function was poorer at both 6-months and 12-months poststroke, compared to prestroke. Psychological problems were more common than expected, with emotional difficulties and hyperactivity-inattention most significantly affected. Poorer social function was associated with older age at onset, acute neurological impairment, and prestroke social impairment. Social and psychological problems were associated with parent mental health.Interpretation: While not all children are affected, psychosocial impairment affects a significant minority after childhood stroke. Older age at onset, acute neurological impairment, prestroke social problems, and poorer parent mental health were associated with deficits. Identifying early predictors of poorer outcome will facilitate early intervention. Of particular importance is parent mental health, suggesting support for families may improve child outcome. [ABSTRACT FROM AUTHOR]

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Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Developmental Medicine & Child Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aim: Using the World Health Organization International Classification of Functioning, Disability and Health (ICF), the aim of this study was to identify effective strategies for managing urinary and bowel complications resulting from spina bifida.Method: Charts of 210 children between 4- and 13-years-old with spina bifida were reviewed to quantify medical interventions and continence status. Standardized quality of life (QOL) questionnaires were administered to a subset of participants; child and parent interviews were carried out to examine the experience of living with bowel and bladder incontinence. Practitioners were also interviewed to understand their perspectives of intervention effectiveness.Results: Chart review indicated less than half of children were continent for bowel and bladder. More variability existed in bowel continence programs, and practitioners considered bowel continence more difficult to achieve than bladder continence. No significant associations were found between continence status and QOL measures. Interviews, however, reflected how managing continence at home and school more broadly affects QOL. Among practitioners, some focused primarily on optimizing physical health while others focused on activity and participation.Interpretation: While continence is a goal, programs used to achieve this are individualized and outcomes may be affected by differential treatment effects, environmental factors, and/or stigma experienced by children. [ABSTRACT FROM AUTHOR]

Aim: This study was conducted to develop and validate a new self-report questionnaire for measuring quality of life (QoL), at school age, in children with a very low birthweight (VLBW).Method: Through a focus group approach, children were involved directly in defining the questionnaire items, which were presented as illustrations rather than written questions. This preliminary validation of the questionnaire was conducted in 152 participants with VLBW (aged 7-11y) randomly selected from the five participating Italian centres. The questionnaire was completed by children and parents separately; data on children's demographic and medical history, and intellectual, adaptive, and behavioural functioning were collected using standardized scales. All the children also completed the Paediatric Quality of Life Inventory (PedsQL), another Italian-language measure of QoL in children.Results: Our questionnaire was readily accepted and understood, and quick to complete. The Cronbach's alpha value showed it to be a reliable instrument. The child-compiled version correlated well with the PedsQL, whereas no correlations emerged with the other scales used, IQ, or degree of impairment. Conversely, these variables correlated significantly with the parent-compiled version. Children's and parents' answers were divergent on practically all the items.Interpretation: The results confirm the validity of the new instrument and highlight a poor overlap between parents' and children's perspectives. [ABSTRACT FROM AUTHOR]

Aim: The frequency and impact of symptoms experienced by patients with congenital, childhood, and juvenile-onset myotonic dystrophy (CDM/ChDM/JDM) is not documented. This report identifies symptomatic areas with the greatest disease burden in an international population of patients with early-onset myotonic dystrophy type-1 (DM1).Method: We distributed surveys to parents of patients with CDM/ChDM/JDM. Patients with CDM/ChDM/JDM were members of the US National Registry of DM1 Patients and Family Members, the Canadian Neuromuscular Disease Registry, or the Swedish Health System. Surveys inquired about 325 symptoms and 20 themes associated with CDM/ChDM/JDM. Parents identified the importance of each symptom and theme to their affected child. The prevalence of each symptom and theme were compared across subgroups of patients. The statistical analysis was performed using Fisher's exact and Kruskal-Wallis tests.Results: One hundred and fifty parents returned surveys. The most frequently reported symptomatic themes in children were issues involving communication (81.7%) and problems with hands or fingers (79.6%). Problems with communication and fatigue were the issues that were reported to have the greatest impact on childrens' lives, while 24.1% of children reported cardiac disorders and 15.8% had problems with anesthesia.Interpretation: A range of symptoms contribute to the burden of disease faced by children with DM1. Many of these symptoms are under-recognized. [ABSTRACT FROM AUTHOR]

Aim: The purpose of the study was to compare the risk of psychiatric disturbance among sighted and vision-impaired children aged 11 years.Method: Scores from the parent and teacher versions of the Strengths and Difficulties Questionnaire (SDQ) were used to compare sighted children with: vision-impaired children; vision-impaired children with no other reported disabilities or special educational needs; and children with vision impairment and additional disabilities or special educational needs. Logistic regression was used to measure the associations between the independent variables and SDQ scores, and to test for significance of the observed differences.Results: Both parents and teachers scored vision-impaired children significantly higher on the SDQ compared with sighted children (p≤0.000) and a significantly higher proportion of the vision-impaired children had SDQ scores in the abnormal range (p≤0.000). Children with vision impairment and other disabilities or special educational needs were rated as being at greatest risk of psychiatric disorder by both parents (30%) and teachers (22%).Interpretation: Vision impairment among children as young as 11 years of age is associated with an increased risk of psychiatric disorder. [ABSTRACT FROM AUTHOR]

Aim: To estimate health-related quality of life (HRQOL) in patients with Duchenne muscular dystrophy (DMD).Method: HRQOL was assessed using the Health Utilities Index Questionnaire (HUI) and the Pediatric Quality of Life Inventory (PedsQL) neuromuscular module version 3.0 online. Results were stratified by disease stage (early/late ambulatory/non-ambulatory) and caregivers' perceptions of patients' health and mental status.Results: A total of 770 patient-caregiver pairs (173 German, 122 Italian, 191 UK, and 284 USA) participated. Most caregivers (>84%) perceived their patients as happy/somewhat happy and in excellent/very good/good health, irrespective of current ambulatory class. In contrast, mean patient utility (reflecting public preferences: 0, dead; 1, perfect health) deteriorated with disease course, from 0.75 in early ambulatory males to 0.15 in the most severely affected patients. Mean patient PedsQL scores (0-100, higher score indicating better HRQOL) decreased from 80 to 57 across ambulatory classes.Interpretation: HRQOL in DMD, measured through public preferences, is substantially impaired in relation to the general population and significantly associated with disease progression. Still, most patients are perceived as happy and in good health by their caregivers, indicating that influential domains of HRQOL remain intact through the disease progression. Our findings emphasize the challenges in measuring HRQOL in a rare, progressive childhood condition such as DMD. [ABSTRACT FROM AUTHOR]

Aim: Fatigue in children and adolescents with multiple sclerosis (caMS) is currently poorly understood. This review aimed to provide greater insight into this area and direction for future research by evaluating evidence of associations between fatigue and clinical, psychological, and social factors in caMS.Method: Studies were identified by searching online databases, hand-searching reference lists, and requesting unpublished literature from key authors. Studies that examined fatigue in relation to at least one clinical, psychological, or social factor in caMS were included. Data on design, sample characteristics, measures of fatigue, clinical, psychological, and social variables, and key findings were extracted. Twelve studies were narratively synthesized.Results: Clinical factors appeared largely unrelated to fatigue, whereas associations between fatigue and tests of neurocognitive functioning, and fatigue and diagnosable psychiatric disorders, were mixed. However, fatigue and depressed mood consistently correlated. A small number of studies indicated associations between fatigue and reduced quality of life and school performance.Interpretation: A sufficient explanatory model of fatigue in caMS is lacking as studies in this area are few and diverse. Future research should endeavour to identify potentially modifiable clinical and psychosocial factors that are associated with fatigue in caMS so that interventions targeting such factors may be developed. [ABSTRACT FROM AUTHOR]

Aim This cross-sectional study investigates the relationship between motor performance and mental health in a representative population of children with hearing impairment. Method Ninety-three pupils (45 males, 48 females) aged 6 years to 16 years (mean 11y 3mo, SD 2y 9mo) with hearing impairment of at least 40d B and a Nonverbal IQ greater than 70 were assessed for motor performance with the Zürich Neuromotor Assessment ( ZNA) and for mental health with the parent version of the Strengths and Difficulties Questionnaire (SDQ). Results Children with hearing impairment had lower motor performance scores in all four ZNA subscales compared with ZNA norms ( z-scores −1.42 to −2.67). After controlling for Nonverbal IQ, ZNA pure motor performance correlated negatively with the SDQ total difficulties score. Pure motor, pegboard, and dynamic balance subscales correlated negatively with peer-relationship problems. Dynamic balance correlated negatively with emotional problems. Performance in pure motor and dynamic balance skills correlated negatively with age. Except for static balance, no correlation was found between motor performance and the degree of hearing impairment. Interpretation Results confirm that a high percentage of children with hearing impairment have poor motor performance. These problems are associated with difficulties in social relationships. Early recognition of these problems may lead to interventions to assist children with hearing impairment with their peer relationships. [ABSTRACT FROM AUTHOR]

AIM The aim of this study is to evaluate the long-term effects of selective dorsal rhizotomy (SDR), 15 to 20 years after surgery in patients with cerebral palsy. METHOD Eighteen children (four females, 14 males; mean age at SDR 4y 7mo, SD 1y 7mo) with bilateral spastic cerebral palsy (CP), were prospectively assessed after SDR. This study focuses on the outcome 15 to 20 years after the procedure. The assessments include the Modified Ashworth Scale for spasticity, the Gross Motor Function Measure (GMFM-88), the Wilson Mobility Scale, The Health-Related Quality of Life Health Survey, SF-36v2, and the Brief Pain Inventory. RESULTS The effect of normalized muscle tone in lower extremities after SDR was sustained after a median of 17 years. The best gross motor function capacity, according to the GMFM score, was seen at the 3-year follow-up, thereafter a gradual decline followed. Half of the individuals reported low intensity pain and interference. Compared to a norm sample the physical health component of SF-36v2 was slightly lower and the mental health component slightly higher. INTERPRETATION The spasticity-reducing effect of SDR does not improve long-term functioning, nor prevent contractures, but it can possibly reduce the pain often experienced by individuals with CP. [ABSTRACT FROM AUTHOR]

Aim This study aimed to quantify the contribution of physical, personal and environmental characteristics to physical activity among independently ambulant children with unilateral cerebral palsy ( CP). Method One-hundred and two children with unilateral CP (52 males, 50 females; 52 right hemiplegia; mean age 11y 3mo, range 8-17y [ SD 2y 4mo]) classified at Gross Motor Function Classification System ( GMFCS) levels I = 44 and II = 58 participated. Physical activity was measured over 4 days using ActiGraph accelerometers recording as activity counts. GMFCS, functional strength, 6-minute walk test (6 MWT), mobility limitations (MobQues28), age, sex, Assessment of Life-Habits recreation domain, Participation and Environment Measure for Children and Youth ( PEM- CY) and environmental characteristics were considered for selection in a linear regression model. These served as independent variables which were determined using a backwards selection procedure. Results Younger age, male sex, increased performance on the 6 MWT, and increased participation in the home and community measured using the PEM- CY were significantly associated with activity counts ( p<0.001). However, the model fit was somewhat weak ( R2=0.32), indicating that much of the variation was unexplained. Older age and reduced community participation were associated with high inactivity ( p<0.001). Interpretation Physical activity interventions should primarily target adolescents and females. Walking endurance and participation in the home and community may represent modifiable characteristics to increase physical activity. [ABSTRACT FROM AUTHOR]

Aim The objective of this article is to report on the Core Sets developed for children and youth aged 0 to 18 years, with cerebral palsy ( CP) based on the pediatric International Classification of Functioning, Disability and Health ( ICF) by the World Health Organization ( WHO). Method A formal decision-making and consensus process integrating evidence gathered from preparatory studies was followed. Preparatory studies included: a systematic literature review; an international expert survey; a qualitative study of children and youth with CP and their caregivers; and a clinical study. Relevant ICF categories were identified in a formal consensus process by international experts from different backgrounds. Twenty-six international experts chosen by WHO region with expertise in CP attended the consensus meeting. Results Overall, five ICF Core Sets were developed: a Comprehensive Core Set (135 ICF categories); a Common Brief (25 ICF categories); and three age-specific Core Sets: under 6 years (31 ICF categories), from 6 to <14 years (35 ICF categories) and from 14 to 18 years (37 ICF categories). Interpretation These ICF Core Sets for children and youth with CP are the first ICF-based tools developed for this population. The ICF Core Sets for children and youth with CP can be applied in clinical practice, research, teaching and administration. The application of the ICF Core Sets to this population will standardize the functional assessments of CP worldwide. [ABSTRACT FROM AUTHOR]

Aim To determine the distribution and risk characteristics of comorbid neurodevelopmental and mental health comorbidities among children and adolescents (6-18y) with epilepsy or migraine (i.e. a neurological condition with shared features and potential etiology) compared with lower extremity fracture (LEF). Method This case-control study involved a subset analysis of surveillance data in South Carolina, USA. Hospital admission, outpatient, and emergency department visits for individuals with an International Classification of Disease, 9th revision Clinical Modification diagnosis of epilepsy ( n=6730; 54.5% females, 45.5% males; mean age [SD] 14y 2mo [4y 5mo]); migraine ( n=10 495; 74.5% females, 25.5% males; 15y 6mo [2y 6mo]), or LEF ( n=15 305; 40.3% females, 59.7% males; 13y 11mo [2y 11mo]) from January 1 2000 to December 31 2011 were identified. The association of epilepsy, migraine, or LEF with any mental health comorbidity was evaluated with univariate and multivariate polytomous logistic regression. Results Comorbidities were highly prevalent in children and adolescents, with epilepsy with a rate of 29.7% (95% confidence interval [CI]: 28.6-30.8) for mental health comorbidities and 30.8% (95% CI: 29.7-31.9) for neurodevelopmental comorbidities. The odds of mental health comorbidity was 2.20 (95% CI: 2.02-2.39) for children and adolescents with epilepsy and 1.60 (95% CI: 1.48-1.73) for migraine, in reference to children and adolescents with LEF after adjusting for potential confounders. Prevalence and risk for specific comorbidities are presented. Interpretation Neuropathophysiological and psychosocial factors specific to epilepsy may provide more risk for adolescents with epilepsy compared to migraine. [ABSTRACT FROM AUTHOR]

Aim This study investigated the diagnostic accuracy of the Strengths and Difficulties Questionnaire ( SDQ) in a population of children born extremely preterm (<26wks gestation). Method Parents and teachers of 219 extremely preterm children (118 females, 101 males; age 11y) were asked to complete the SDQ to screen for psychological problems. Multi-informant ratings were aggregated using two methods: combined (parent or teacher rated the child with problems) and pervasive (parent and teacher rated the child with problems). Psychiatric diagnoses were assigned using the Development and Well-Being Assessment. Results Pervasive ratings had the greatest diagnostic accuracy for emotional disorders (89%), conduct disorders (94%), attention-deficit-hyperactivity disorder ( ADHD; 90%), and autism spectrum disorders ( ASDs; 94%), but were associated with low sensitivity (≤50%). For clinical use, combined ratings were best for detecting emotional disorders (sensitivity 77%, specificity 75%), conduct disorders (83%, 88%), and ADHD (85%, 72%). Parent ratings were best for ASDs (93%, 66%). Teacher ratings significantly improved prediction over parent ratings alone for conduct disorders (∆ χ2=9.3, p=0.002) and ADHD (∆ χ2=24.1, p<0.001) only. Interpretation Multi-informant data are preferable for assessing most mental health outcomes using the SDQ. As an outcome measure, pervasive ratings have the best predictive accuracy. For screening, combined ratings are best for detecting ADHD and emotional and conduct disorders. For ASDs, parent ratings were best. [ABSTRACT FROM AUTHOR]

Aim To evaluate the stability over time of the Manual Ability Classification System ( MACS) levels. Method The study group comprised 1267 children with cerebral palsy (746 males, 521 females) who were followed from 2005 to 2010 with two or more registered MACS classifications rated at least 1 year apart. Thirty-five percent of the children ( n=445) had four MACS registrations. The children were between 4 and 17 years old at their first rating, The stability over time was also compared between children who were younger (4y of age) or older (≥10y) at the time of their first classification. Results An excellent stability was found between two ratings at 1-year intervals with an intraclass correlation coefficient ( ICC) of 0.97 (95% CI 0.97-0.97) and 82% agreement ( n=1267). The stability was also excellent for two ratings performed 3 to 5 years apart ( ICC 0.96; 95% CI 0.95-0.97) with an agreement of 78% ( n=445). Across four ratings, 70% of the children remained at the same level. The results were similar for younger and older children, indicating that stability was not influenced by age. Interpretation This study provides evidence that MACS levels are stable over time and that the classification has predictive value. [ABSTRACT FROM AUTHOR]

Aim The aim of the study was to explore the contribution of recurrent musculoskeletal pain and mental health to aspects of participation in children with cerebral palsy (CP). Method A total of 105 participants (54 males, 51 females); mean age 14y (SD 3) were assessed by clinical examination, interview, and parental questionnaires. CP type distribution was as follows: spastic unilateral, 37%; spastic bilateral, 56%; and dyskinetic, 7%. Motor function assessed using the Gross Motor Function Classification System was level I, 33%; level II, 40%; level III, 15%; and level IV/V, 11%. Parents reported child participation using the Assessment of Life Habits, child mental health problems using the Strengths and Difficulties Questionnaire, their own mental health using the General Health Questionnaire, and their socioeconomic status. Results Recurrent musculoskeletal pain was associated with reduced accomplishment of daily activities ( B=−1.22, p=0.02) and social roles ( B=−1.17, p=0.03), and with reduced parental satisfaction with the accomplishment of daily activities ( B=−1.14, p=0.03) and social roles ( B=−1.48, p<0.01). Increasing levels of child mental health problems was associated with reduced accomplishment of daily activities ( B=−0.10, p=0.02) and social roles ( B=−0.11, p<0.01), and with reduced parental satisfaction with the accomplishment of social roles ( B=−0.21, p<0.01). Interpretation Pain and child mental health should be considered in most participation models in CP. Regarding participation as an objective outcome measure is questionable. [ABSTRACT FROM AUTHOR]

Aim To establish the rates and types of psychiatric disorder in children before and after surgery for extratemporal epilepsy. Relationships between psychiatric morbidity and demographic/clinical variables were examined. Method A retrospective case note review of 71 children undergoing extratemporal focal resection for drug resistant epilepsy in a specialist epilepsy surgery programme between 1997 and 2008. Psychiatric diagnoses were derived from pre- and postoperative assessments according to DSM-IV criteria. Results Seventy-one children (38 males, 33 females) were eligible for this study. Mean age (SD) at surgery was 9 (5) years. Frontal resections were performed in 73% of the children, parietal in 17%, and occipital in 10%. Mental health problems were present in 37 of 71 (52%) children pre- and/or postoperatively. A similar proportion of children had psychiatric diagnoses pre- and postoperatively: 31 of 71 (44%) and 32 of 71 (45%) respectively. Interpretation Psychopathology is common in children with extratemporal epilepsy. In this sample, the impact of surgery on psychiatric symptoms was not predictable: some children were unchanged, others improved, and others acquired new psychiatric diagnoses postoperatively. Given the high rates of psychiatric disorder in this group of patients, detection and treatment of mental health needs may be important. [ABSTRACT FROM AUTHOR]

Aim The aim of this study was to investigate the association between heavy maternal alcohol consumption and pre- peri- and postneonatally acquired cerebral palsy (CP). Method The records of all mothers with an International Classification of Diseases, revision 9 or 10 (ICD-9/-10) alcohol-related diagnostic code, indicating heavy alcohol consumption, recorded on population-based health, mental health, and drug and alcohol data sets from 1983 to 2007, and their children were identified through the Western Australian Data-linkage System. This 'exposed' cohort was frequency matched with mothers without an alcohol-related diagnosis and their offspring (comparison group). Cases of CP were identified through linkage with the Western Australia CP Register. Analyses were undertaken using multivariate logistic regression. Results There were 23 573 live births in the exposed group (58.6% non-Aboriginal; 41.4% Aboriginal) and 292 cases of CP. The odds of pre/perinatally acquired CP were elevated for children of non-Aboriginal mothers with an alcohol-related diagnosis recorded during pregnancy (adjusted odds ratio 3.32; 95% confidence interval [CI] 1.30-8.48) and for Aboriginal children when an alcohol-related diagnosis was recorded up to 12 months before the mother's pregnancy (adjusted odds ratio 2.49; 95% CI 0.99-6.25). Increased odds of postneonatally acquired CP following any alcohol-related diagnosis were found for non-Aboriginal children (adjusted odds ratio 7.92; 95% CI 2.23-28.14). Interpretation These results suggest that heavy maternal alcohol consumption is a direct cause of pre/perinatally acquired CP, and an indirect cause of postneonatally acquired CP, in non-Aboriginal children. The lack of an association for Aboriginal children requires further investigation but may be due to under ascertainment of alcohol use disorders during pregnancy and other aetiological pathways. [ABSTRACT FROM AUTHOR]

A letter to the editor is presented in response to the article "Influence of Subclinical Generalized Spike-Wave Activity on the Heart Rate of Children With Epilepsy," published in a previous issue.

The Developmental Origins of Health and Disease (DOHaD) hypothesis studies the short- and long-term consequences of the conditions of the developmental environment for phenotypic variations in health and disease. Central to this hypothesis is the idea of interdependence of developmental influences, genes, and environment. Developmental programming effects are mediated by alterations in fundamental life functions, and the most enduring effects seem to occur if the main regulatory instances of the organ - the (epi)genome and the brain - are affected. Some new insights in the role of chromatin, in cellular development and differentiation, and neural plasticity from the field of epigenetics are introduced, followed by a section on epigenetics and brain development. It is proposed to extend the DOHaD hypothesis into the 'Developmental Origins of Behaviour, Health, and Disease' (DOBHaD) concept. Pregnancy and the early postnatal period are times of both great opportunity and considerable risk, and their influence can extend over a lifetime. The DOBHaD hypothesis opens fundamental new perspectives on preventing diseases and disorders. [ABSTRACT FROM AUTHOR]

The aim of this study was to evaluate the impact of pre- and perinatal factors on the risk of developing attention-deficit-hyperactivity disorder (ADHD). We investigated the medical history of 237 children (206 male; 31 female) from Malmö, Sweden born between 1986 and 1996 and in whom a diagnosis of ADHD (Diagnostic and Statistical Manual of Mental Disorders-IIIR or IV) was subsequently made at the Department of Child and Adolescent Psychiatry, Lund University, and a reference group of 31 775 typically developing children from Malmö using data from the Swedish Medical Birth Register. The results of multiple logistic regression analysis revealed that ADHD was significantly associated with a young maternal age (odds ratio [OR] for 5y increase 0.87; 95% confidence interval [CI] 0.76-0.99), maternal smoking (OR 1.35; 95% CI 1.14-1.60), maternal birthplace in Sweden (OR 2.04; 95% CI 1.45-2.94), and preterm birth <32 weeks (OR 3.05; 95% CI 1.39-6.71), and a male predominance (OR 6.38; 95% CI 4.37-9.32). Apgar scores at 5 minutes below 7 were significantly associated with ADHD in the univariable analysis (OR 2.60; 95% CI 1.15-5.90). The population-attributable fraction of ADHD caused by the perinatal factors studied was estimated to be 2.8%. The results indicate that the studied factors constitute weak risk factors for developing ADHD. [ABSTRACT FROM AUTHOR]