Different forms of maltreatment are thought to incur a cumulative and non-specific toll on mental health. However, few large-scale studies draw on psychiatric diagnoses manifesting in early childhood and adolescence to identify sequelae of differential maltreatment exposures, and emotional maltreatment, in particular. Fine-grained multi-source dimensional maltreatment assessments and validated age-appropriate clinical interviews were conducted in a sample of N = 778 3 to 16-year-olds. We aimed to (a) substantiate known patterns of clinical outcomes following maltreatment and (b) analyse relative effects of emotional maltreatment, abuse (physical and sexual), and neglect (physical, supervisory, and moral-legal/educational) using structural equation modeling. Besides confirming known relationships between maltreatment exposures and psychiatric disorders, emotional maltreatment exerted particularly strong effects on internalizing disorders in older youth and externalizing disorders in younger children, accounting for variance over and above abuse and neglect exposures. Our data highlight the toxicity of pathogenic relational experiences from early childhood onwards, urging researchers and practitioners alike to prioritize future work on emotional maltreatment.

Effective interventions for maltreated children are impeded by gaps in our knowledge of the etiopathogenic mechanisms leading from maltreatment to mental disorders. Although some studies have already identified individual risk factors, there is a lack of large-scale multilevel research on how psychosocial, neurobiological, and genetic factors act in concert to modulate risk of internalizing psychopathology in childhood following maltreatment. To help close this gap, we aim to delineate gender-specific pathways from maltreatment to psychological disorder/resilience. To this end, we examine the interplay of specific maltreatment characteristics and psychological, endocrine, metabolomic, and (epi-)genomic stress response patterns as well as cognitive-emotional/social processes as determinants of developmental outcome. Specifically, we will explore endocrine, metabolomic, and epigenetic mechanisms leading from maltreatment to a higher risk of depression and anxiety disorders. Four large samples amounting to a total of N = 920 children aged 4–16 years will be assessed: Two cohorts with prior internalizing psychopathology and controls will be checked for maltreatment and two cohorts with substantiated maltreatment will be checked for internalizing (and externalizing) psychopathology. We will apply a multi-source (interview, questionnaires, official records), multi-informant strategy (parents, children, teachers) to assess maltreatment characteristics (e.g., subtypes, developmental timing, chronicity) and psychopathological symptoms, supplemented with multiple measurements of risk and protective factors and cutting-edge laboratory analyses of endocrine, steroid metabolomic and epigenetic factors. As previous assessments in the two largest samples are already available, longitudinal data will be generated within the three year study period. Our results will lay the empirical foundation for (a) detection of early biopsychosocial markers, (b) development of screening measures, and (c) multisystem-oriented interventions in the wake of maltreatment.

Background/Objectives: Early childhood psychopathology has a profoundly negative impact on various areas of psychosocial functioning. Psychopathology and child development are closely linked and influenced by a range of factors, such as socioeconomic status and pre- and postnatal risks. This cross-sectional study aims to gain a deeper understanding of child development in children with early psychopathology and to derive implications for the diagnosis and treatment of the youngest children. Methods: This cross-sectional study examines the developmental status of children aged 0 to 5 years with early psychopathology (EPP) in comparison to gender- and age-matched healthy controls (HC). A newly self-developed objective, semi-structured, symptom-based interview was administered in each subgroup by trained research assistants. This interview is based on the DC: 0–5 classification system. The ET 6-6-R was used as a standardized developmental test, covering the developmental areas of gross and fine motor skills, cognition, language development, and socioemotional development. Demographic characteristics, including maternal education and household income, were considered as potential confounders. Results: Children with early pathology elicited a lower total developmental quotient than healthy controls. HC demonstrated a better performance in fine motor skills, language development, and socioemotional development than their counterparts with EPP. HC showed better gross motor skills as well, but statistical significance was p = 0.08. After controlling for maternal education, overall development and socioemotional development were found to be lower in the EPP group than in the HC group. Conclusions: These findings highlight the need to identify psychopathology and associated developmental deficits early in childhood which might allow more targeted treatments, enhancing developmental opportunities for affected children.

Longitudinal research on the adverse consequences of childhood maltreatment has recently gained significant traction. However, systematic attrition, partly due to specific subsample recruitment needs, threatens the validity of this research. Furthermore, studies specifically analyzing these factors in the field of maltreatment research remain scarce. We utilized data from a longitudinal study comprising N = 863 participants ( M _Age = 10.23 years, 47.5% female) and their caregivers at T1, and 616 participants ( M _Age = 17.95 years, 50.0% female) at T2. We determined the attrition rate and analyzed psychosocial and socioeconomic predictors of attrition. Additionally, we examined differences in re-assessment efforts between maltreated and non-maltreated youth for T2. Findings indicate a comparatively low attrition rate of 28.6% over nearly 8 years. Participants’ maltreatment experiences, externalizing symptoms, and lower household income predicted higher attrition risk, while interim subsample study participation reduced this risk. Maltreatment experiences, lower household income, and higher age were also associated with increased re-assessment effort. Our study provides insights into predictors of systematic attrition in a longitudinal study with maltreated and non-maltreated youth. It highlights the need for tailored retention strategies, frequent contact with families, and targeted resource allocation to mitigate systematic attrition.