Parents’ difficult childhoods linked to children’s behavioural problems, study finds

A small German study suggests parental adversity may be linked to children’s externalising symptoms and greater stress at home, while warmth and appreciation appear protective.

A new study from Saarland University Hospital in Homburg, Germany, suggests that a parent’s own difficult childhood may be linked to a child’s behavioural problems and to the pressure that parents feel at home. Writing in Frontiers in Child and Adolescent Psychiatry, the researchers examined 76 children and teenagers aged six to 17 who were receiving outpatient psychiatric care, including young people diagnosed with ADHD, internalising disorders such as anxiety and depression, and functional incontinence. The team looked not only at the children’s symptoms but also at the parents’ adverse childhood experiences, parenting style and current stress.

The findings fit into a wider body of research on adverse childhood experiences, or ACEs, which include abuse, neglect and household instability. Earlier research published in PubMed and other journals has linked maternal ACEs with higher risks of internalising and externalising problems in children, while studies of family adversity have found that parenting practices and parental mental health can help explain how those risks are passed on. The German study adds a clinical comparison across different child diagnoses and includes fathers as well as mothers, something many earlier projects did not do.

In the German sample, mothers reported more ACEs on average than fathers, and nearly one in five mothers reported four or more, a level often associated with broader health risks. Emotional neglect, emotional abuse and parental separation were especially common among mothers, and the researchers noted that these forms of adversity were overrepresented compared with a general German population sample. The authors said that this points to particularly strong exposure to relationship-based trauma among families seeking child psychiatric care.

The clearest statistical link was between parental ACEs and children’s externalising symptoms, which cover conduct problems, hyperactivity and behavioural dysregulation. Higher parental ACE scores were also tied to greater parental stress, but not to the children’s internalising symptoms. Parenting style itself was not closely related to parental ACE history, suggesting that early adversity may not directly determine how parents behave day to day. Instead, warmth and appreciation stood out as protective factors: higher levels of that positive parenting style were associated with fewer child symptoms and less parental stress. According to the study, parents of children with ADHD also reported greater strictness than parents of children with internalising disorders, a difference the authors said may reflect the demands of managing impulsive or disruptive behaviour.

The most important predictor of parental stress in the final regression model was not childhood adversity itself, but the child’s externalising behaviour and the parent’s sense of role restriction, or feeling constrained by the parenting role. Together, those factors explained nearly half the variation in stress in families with complete data. The authors cautioned that the study was small, cross-sectional and unable to prove causation, and that the father sample was limited. Even so, they argue that child psychiatric services should consider routine screening for parental ACEs, especially where externalising symptoms are present, because support aimed at reducing stress and strengthening warm parent-child relationships may help both generations.