Nurturing early years programmes may curb mental health problems in children facing poverty

Children, adolescents and parents living in poverty face a markedly elevated risk of mental health problems, and a new realist synthesis published in BMC Public Health examines which interventions may prevent those problems, in what circumstances, and why. The synthesis, led by researchers including R. McGovern and E. Kaner, systematically searched six electronic databases — MEDLINE, PsycINFO, EMBASE, CINAHL, Applied Social Science Index and Abstracts and Scopus — and supplemented this with grey literature to identify studies of preventive interventions for children and their parents living in material deprivation. The team included 67 unique studies, reported across 73 papers, covering interventions aimed at children and/or their parents.

Rather than simply asking whether programmes work on average, a realist synthesis asks a more granular question: which contextual factors and mechanisms trigger the outcomes observed, for whom, and under what conditions. This approach allowed the researchers to map how poverty shapes risk exposure, vulnerability and the consequences families experience, and how interventions interact with those pathways. The headline finding concerns the early years.

The synthesis found that a nurturing early years educational intervention, provided universally to children living in poverty, may address the differential risk exposure that young children in deprived circumstances experience and may effectively prevent behavioural problems. In other words, when a high-quality, supportive educational environment reaches all children in poverty — not only those already flagged as struggling — it can counteract some of the added adversity that poverty imposes at a developmental stage when behavioural patterns are still forming. However, the evidence points to limits of a universal approach alone.

Where children experience greater vulnerability in the early, mid or adolescent years, or where they are already demonstrating higher consequences from their risk exposure, the synthesis indicates that targeted interventions may be required. These targeted programmes work best, the researchers found, when they recognise and respond to poverty and its impacts while also supporting parents in their parenting role. That dual focus matters because the mental health of children and parents is intertwined: parental distress and parenting capacity shape the environment in which children develop, and children's difficulties in turn place strain on parents.

The synthesis therefore concludes that preventing mental health problems in children and parents living in material deprivation most likely requires a poverty-informed response proportionate to need. According to the authors, such a response is most likely to be effective if it addresses the interacting mechanisms and associated pathways of differential risk, vulnerability and consequence experienced by both the parent and the child. A programme that ignores the material realities of poverty, or that treats the child in isolation from the family context, is less well supported by the evidence assembled here.

The realist framing helps explain why this matters for policy. But as children grow older, the mechanisms through which poverty harms mental health — including cumulative adversity and its consequences — become more varied, and the needs of families diverge. At those later stages, the evidence favours interventions that are tailored to greater vulnerability and that explicitly support parents, rather than one-size-fits-all programmes.

The authors are careful about the strength of these conclusions. The evidence base carries notable limitations: follow-up periods in the included studies were short, meaning longer-term effects of preventive interventions remain uncertain. There was an absence of evidence considering paternal mental health, leaving fathers largely invisible in this literature despite their role in family wellbeing.

The samples studied were also limited in diversity, raising questions about how well the findings generalise across different populations and settings. These constraints mean the synthesis should be read as mapping where the weight of evidence currently lies, not as a definitive prescription. The finding that universal nurturing early years education may prevent behavioural problems is a measured, evidence-based observation about what the included studies suggest, and the call for targeted, poverty-aware, parent-supporting interventions in later childhood and adolescence reflects the pattern the researchers identified across the 67 studies rather than a tested clinical recommendation.

Even so, the work offers a coherent framework for thinking about prevention in deprived communities. By distinguishing risk, vulnerability and consequence as separate but interacting pathways, and by showing that different intervention models align with different points along those pathways, the synthesis gives policymakers and service designers a structure for matching resources to need: universal nurture early, targeted and family-centred support where vulnerability or harm is already evident, and attention to parents as well as children throughout.

Subject of Research: Realist synthesis of interventions to prevent mental health problems in children and parents living in poverty

Article Title: A realist synthesis of evidence on the effectiveness of interventions to prevent mental health problems in children and parents living in poverty

Article References: McGovern, R., Smart, D., Muir, C., Sirisena, M., Gray, L., Howard, L. M., Melendez-Torres, G. J., & Kaner, E. (2026). A realist synthesis of evidence on the effectiveness of interventions to prevent mental health problems in children and parents living in poverty. BMC Public Health. https://doi.org/10.1186/s12889-026-29949-8

Image Credits: AI Generated

DOI: 10.1186/s12889-026-29949-8

Keywords: poverty, mental health prevention, children, parents, realist synthesis, early years education, behavioural problems, targeted interventions, parenting support, BMC Public Health, realist, synthesis