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Decisions regarding out-of-home placement of children are complicated and of high impact for children and parents. Previous studies show low agreement between professionals on these decisions, and research regarding the influence of characteristics of decision-makers on the content of the decisions taken remains inconclusive. This study explored the relation between general and psychological characteristics of 144 professionals (child welfare professionals, children's court judges, and master students) using vignettes and questionnaires. Professionals' mind-set regarding the ability of parents to achieve change (parent-specific mind-set) and their attitude toward the harmfulness of out-of-home placements were related to their decision-making. General decision-maker factors (the professional's background and work experience), the mind-set toward the ability of people in general to change (dispositional mind-set), and professionals' attitude toward the effectiveness of out-of-home placements were not related to their decisions. This field of practice needs to reflect on the role of implicit beliefs in making placement decisions about children.

Evidence suggests that maltreatment shapes the child's brain. Little is known, however, about how normal variation in parenting influences the child neurodevelopment. We examined whether harsh parenting is associated with the brain morphology in 2,410 children from a population-based cohort. Mothers and fathers independently reported harsh parenting at child age 3 years. Structural and diffusion-weighted brain morphological measures were acquired with MRI scans at age 10 years. We explored whether associations between parenting and brain morphology were explained by co-occurring adversities, and whether there was a joint effect of both parents' harsh parenting. Maternal harsh parenting was associated with smaller total gray (β = −0.05 (95%CI = −0.08; −0.01)), cerebral white matter and amygdala volumes (β = −0.04 (95%CI = −0.07; 0)). These associations were also observed with the combined harsh parenting measure and were robust to the adjustment for multiple confounding factors. Similar associations, although non-significant, were found between paternal parenting and these brain outcomes. Maternal and paternal harsh parenting were not associated with the hippocampus or the white matter microstructural metrics. We found a long-term association between harsh parenting and the global brain and amygdala volumes in preadolescents, suggesting that adverse rearing environments common in the general population are related to child brain morphology.

AbstractThis exploratory study aimed to examine which components of early childhood conscience predicted bullying involvement around school entry. In the population‐based Generation R Study, teacher reports of bullying involvement and parent reports of conscience were available for 3,244 children (M age = 6.7 years). Higher levels of overall conscience predicted lower bullying perpetration scores, independently of intelligence quotient, temperamental traits and sociodemographic characteristics. Particularly, the subscales guilt, confession, and internalized conduct, and to a lesser extent empathy, predicted bullying perpetration. Conscience was not related to victimization. Similar results were found using observations during so‐called 'cheating games' (subsample N = 450 children). Findings suggest that improving children's understanding of moral standards and norms may be a potential target for bullying intervention programs in early primary school.

Millions of children worldwide are brought up in institutional care settings rather than in families. These institutions vary greatly both in terms of their organi­sational principles and structure, and in terms of the quality of care provided. Although institutions are universally recognised as providing suboptimal care­giving environments, consensus is still needed on how to interpret the evidence relating to the size, range, and persistence of the effect of institutional care on the development and wellbeing of children. This absence of consensus has led to disagreement as to whether policy should focus on eliminating, transforming, or improving institutions.We reviewed the literature on child institutionalisation and deinstitutionalisation from a global perspective. This review included a survey of historical and cultural trends and estimates of current numbers of children in institutional care, a systematic review and meta­analysis of developmental sequelae, and a largely qualitative review of factors found to predict individual variations in such outcomes. The numbers of children in institutional care have varied enormously over the years and from region to region, driven by a range of political, cultural, and socioeconomic factors. Millions of children worldwide are known to be housed in institutions.1 We found strong negative associations between institutional care and children's development, especially in relation to physical growth, cognition, and attention. Significant but smaller associations were found between institutionalisation and socioemotional development and mental health. Leaving institutions for foster or family care is associated with significant recovery for some developmental outcomes (eg, growth and cognition) but not for others (eg, attention). The length of time in institutions was associated with increased risk of adverse sequelae and diminished chance of recovery. However, we could not disentangle the association between developmental outcomes and the duration of institutional care as opposed to its timing, which would be required to establish the precise boundaries of sensitive periods of development.Every effort should be made to minimise children's exposure to institutional care. Reducing the number of children entering institutions and increasing the number leaving institutions is urgently needed. Where institutional care is considered absolutely necessary, the length of stays should be as short as possible, even if care is adequate. To this end, preventive approaches should be promoted, keeping children in birth families when possible. When not possible, care alternatives that are family based should be supported, including extended kinship networks, adoption, and stable, high­quality fostering. Policy recom­mendations to support the implementation of these care reform goals at the global, regional, and local levels are set out in a linked policy Lancet Commission2 published in The Lancet Child & Adolescent Health.

BACKGROUND: Childhood maltreatment is associated with poor mental and physical health. However, the mechanisms of gene-environment correlations and the potential causal effects of childhood maltreatment on health are unknown. Using genetics, we aimed to delineate the sources of gene-environment correlation for childhood maltreatment and the causal relationship between childhood maltreatment and health. METHODS: We did a genome-wide association study meta-analysis of childhood maltreatment using data from the UK Biobank (n=143 473), Psychiatric Genomics Consortium (n=26 290), Avon Longitudinal Study of Parents and Children (n=8346), Adolescent Brain Cognitive Development Study (n=5400), and Generation R (n=1905). We included individuals who had phenotypic and genetic data available. We investigated single nucleotide polymorphism heritability and genetic correlations among different subtypes, operationalisations, and reports of childhood maltreatment. Family-based and population-based polygenic score analyses were done to elucidate gene-environment correlation mechanisms. We used genetic correlation and Mendelian randomisation analyses to identify shared genetics and test causal relationships between childhood maltreatment and mental and physical health conditions. FINDINGS: Our meta-analysis of genome-wide association studies (N=185 414) identified 14 independent loci associated with childhood maltreatment (13 novel). We identified high genetic overlap (genetic correlations 0·24-1·00) among different maltreatment operationalisations, subtypes, and reporting methods. Within-family analyses provided some support for active and reactive gene-environment correlation but did not show the absence of passive gene-environment correlation. Robust Mendelian randomisation suggested a potential causal role of childhood maltreatment in depression (unidirectional), as well as both schizophrenia and ADHD (bidirectional), but not in physical health conditions (coronary artery disease, type 2 diabetes) or inflammation (C-reactive protein concentration). INTERPRETATION: Childhood maltreatment has a heritable component, with substantial genetic correlations among different operationalisations, subtypes, and retrospective and prospective reports of childhood maltreatment. Family-based analyses point to a role of active and reactive gene-environment correlation, with equivocal support for passive correlation. Mendelian randomisation supports a (primarily bidirectional) causal role of childhood maltreatment on mental health, but not on physical health conditions. Our study identifies research avenues to inform the prevention of childhood maltreatment and its long-term effects. FUNDING: Wellcome Trust, UK Medical Research Council, Horizon 2020, National Institute of Mental Health, and National Institute for Health Research Biomedical Research Centre. ; This work was supported by the Wellcome Trust (Grant refs: 214322/Z/18/Z, 104036/Z/14/Z, 204623/Z/16/Z, and 217065/Z/19/Z). VW was funded by the Bowring Research Fellowship from St. Catharine's College, Cambridge and Wellcome Trust Collaborative Award (Grant Ref: 214322/Z/18/Z). ASFK and AM are supported by Wellcome Trust Grant 104036/Z/14/Z. ASFK is also supported by an ESRC Postdoctoral Fellowship (Grant ref: ES/V011650/1). ML is supported by the scholarship from the China Scholarship Council (No. 201706990036). The work of CC has received funding from the European Union's Horizon 2020 Research and Innovation Programme under the Marie Skłodowska-Curie grant agreement No 707404 and grant agreement No 848158 (EarlyCause Project). MHvIJ is supported by the Dutch Ministry of Education, Culture, and Science and the Netherlands Organization for Scientific Research (NWO grant No. 024.001.003, Consortium on Individual Development) and by a Spinoza Prize of the Netherlands Organization for Scientific Research. HMS and MRM are supported by the Medical Research Council and the University of Bristol (MC_UU_00011/7) and by the National Institute for Health Research (NIHR) Biomedical Research Centre at the University Hospitals Bristol National Health Service Foundation Trust and the University of Bristol. HMS is also supported by the European Research Council (Grant ref: 758813 MHINT). CMN is supported by the National Institute for Mental Health NIMH R01MH106595 and the Center of Excellence for Stress and Mental Health (CESAMH), Veterans Affairs San Diego. AJG and SB are supported by a Sir Henry Dale Fellowship jointly funded by the Wellcome Trust and the Royal Society (grant number 204623/Z/16/Z). TMM and RB are supported by the NIMH (R01MH117014, TMM; K23MH120437, RB).The research was conducted in association with the National Institute for Health Research (NIHR) Cambridge Biomedical Research Centre, and the NIHR Collaboration for Leadership in Applied Health Research and Care East of England at Cambridgeshire and Peterborough NHS Foundation Trust. The views expressed are those of the author(s) and not necessarily those of the National Health Service, the NIHR, or the Department of Health and Social Care. This research was possible due to two applications to the UK Biobank: Projects 20904 and 23787. This research was co-funded by the NIHR Cambridge Biomedical Research Centre and a Marmaduke Sheild grant. The UK Medical Research Council and Wellcome (Grant Ref: 217065/Z/19/Z) and the University of Bristol provide core support for ALSPAC. A comprehensive list of grants funding is available on the ALSPAC website (http://www.bristol.ac.uk/alspac/external/documents/grant-acknowledgements.pdf). We are extremely grateful to all the families who took part in this study, the midwives for their help in recruiting them, and the whole ALSPAC team, which includes interviewers, computer and laboratory technicians, clerical workers, research scientists, volunteers, managers, receptionists and nurses. The study website contains details of all data available through a fully searchable data dictionary (http://www.bristol.ac.uk/alspac/researchers/our-data/). Part of this data was collected using REDCap, see the REDCap website for details https://projectredcap.org/resources/citations/). The first phase of the Generation R Study is made possible by financial support from the Erasmus Medical Centre, Rotterdam; the Erasmus University Rotterdam; ZonMw; the Netherlands Organization for Scientific Research (NWO); and the Ministry of Health, Welfare and Sport. The authors gratefully acknowledge the contribution of all children and parents, general practitioners, hospitals, midwives and pharmacies involved in the Generation R Study. The Generation R Study is conducted by the Erasmus Medical Center in close collaboration with the School of Law and Erasmus School of Social and Behavioural Sciences at Erasmus University Rotterdam; the Municipal Health Service Rotterdam area, Rotterdam; the Rotterdam Homecare Foundation, Rotterdam; and the Stichting Trombosedienst & Artsenlaboratorium Rijnmond (STAR-MDC), Rotterdam.

Child-driven genetic factors can contribute to negative parenting and may increase the risk of being maltreated. Experiencing childhood maltreatment may be partly heritable, but results of twin studies are mixed. In the current study, we used a cross-sectional extended family design to estimate genetic and environmental effects on experiencing child maltreatment. The sample consisted of 395 individuals (225 women; M age = 38.85 years, rangeage = 7–88 years) from 63 families with two or three participating generations. Participants were oversampled for experienced maltreatment. Self-reported experienced child maltreatment was measured using a questionnaire assessing physical and emotional abuse, and physical and emotional neglect. All maltreatment phenotypes were partly heritable with percentages for h 2 ranging from 30% ( SE = 13%) for neglect to 62% ( SE = 19%) for severe physical abuse. Common environmental effects ( c 2) explained a statistically significant proportion of variance for all phenotypes except for the experience of severe physical abuse ( c 2 = 9%, SE = 13%, p = .26). The genetic correlation between abuse and neglect was ρg = .73 ( p = .02). Common environmental variance increased as socioeconomic status (SES) decreased ( p = .05), but additive genetic and unique environmental variances were constant across different levels of SES.

Worldwide, millions of children live in institutions, which runs counter to both the UN-recognised right of children to be raised in a family environment, and the findings of our accompanying systematic review of the physical, neurobiological, psychological, and mental health costs of institutionalisation and the benefits of deinstitutionalisation of child welfare systems. In this part of the Commission, international experts in reforming care for children identified evidence-based policy recommendations to promote family-based alternatives to institutionalisation. Family-based care refers to caregiving by extended family or foster, kafalah (the practice of guardianship of orphaned children in Islam), or adoptive family, preferably in close physical proximity to the biological family to facilitate the continued contact of children with important individuals in their life when this is in their best interest. 14 key recommendations are addressed to multinational agencies, national governments, local authorities, and institutions. These recommendations prioritise the role of families in the lives of children to prevent child separation and to strengthen families, to protect children without parental care by providing high-quality family-based alternatives, and to strengthen systems for the protection and care of separated children. Momentum for a shift from institutional to family-based care is growing internationally—our recommendations provide a template for further action and criteria against which progress can be assessed.