Pediatrics · Medical Literature
Randomized single-blind study to examine the implementation and effectiveness of integrating evidence-based early relational health programs in pediatrics for families with low incomes: A clinical trial protocol.
Abstract
Disparities in early childhood development due to poverty are linked to lifelong gaps in health and well-being. To address such disparities, interventions must not only include the prevention of toxic stress, but also the promotion of early relational health-that is the presence of safe, stable, nurturing relationships between young children and their caregivers. Moreover, a public health approach that integrates multiple programs in order to meet the unique needs and build on the varied resources of individual families is needed to effect population-level change. This randomized controlled trial seeks to examine the implementation and effectiveness of combining two evidence-based interventions, HealthySteps and PlayReadVIP. A total of 355 parent-child dyads, 35 in the implementation phase and 320 in the effectiveness phase, will be randomly assigned to receive HealthySteps+PlayReadVIP or traditional HealthySteps, as an active Control. Families will receive the intervention at each pediatric well-child visit from birth to age 2 and will complete assessments at enrollment and child age 12 and 24 months. In addition, up to ten HealthySteps Specialists and other care providers will be enrolled and will complete surveys at each assessment point. The primary outcomes include positive parent-child relationship, parent cognitive stimulation, and child socioemotional development.
Clinical relevance
This trial addresses a critical gap in early childhood health equity by examining whether combining two evidence-based interventions — HealthySteps and PlayReadVIP — within routine pediatric well-child visits can more effectively promote early relational health than either program alone. The target population is families with low incomes, a group disproportionately burdened by toxic stress and adverse childhood experiences that drive lifelong disparities in developmental, behavioral, and physical health outcomes. With growing recognition that prevention of toxic stress alone is insufficient and that nurturing caregiver-child relationships are foundational to child development, this trial is timely and directly relevant to the clinical mandate of pediatric primary care.
Key findings
1. This is a randomized single-blind controlled trial with a total planned enrollment of 355 parent-child dyads, divided into an implementation phase (n=35) and an effectiveness phase (n=320), providing adequate power for population-level inference. 2. The experimental arm integrates two evidence-based interventions — HealthySteps and PlayReadVIP — delivered concurrently, while the active control arm receives traditional HealthySteps alone, enabling a head-to-head comparison of augmented versus standard care. 3. Interventions are delivered longitudinally at each pediatric well-child visit from birth through age 2, reflecting a sustained, developmentally sensitive dosing schedule across the most neuroplastic period of early childhood. 4. Formal assessments are conducted at three time points — enrollment, 12 months, and 24 months — allowing evaluation of both early and sustained effects on primary outcomes. 5. Primary outcomes include positive parent-child relationship quality, parent cognitive stimulation behaviors, and child socioemotional development — three domains with well-established links to long-term health and educational trajectories. 6. The study embeds a provider-level component by enrolling up to ten HealthySteps Specialists and other care providers who complete surveys at each assessment point, enabling concurrent implementation science evaluation alongside clinical effectiveness. NOTE: As this is a published protocol, no efficacy or effect size data (e.g., ORs, CIs, p-values, NNT) are yet available; quantitative outcome results will be reported upon trial completion.
Practice implications
Pediatric clinicians and health systems serving low-income families should consider the HealthySteps model — augmented with structured literacy and relational health promotion tools such as PlayReadVIP — as a scalable, well-child visit–integrated strategy to address early childhood developmental disparities rather than relying on referral-based or siloed interventions. Patient selection should prioritize families with infants from birth to 24 months who face socioeconomic adversity, as this window represents the highest-yield period for relational and neurodevelopmental intervention. Pending publication of effectiveness results, clinical teams should monitor this trial's outcomes on parent-child relationship quality and socioemotional development, as positive findings would provide a strong evidence base for advocating universal integration of multi-program early relational health bundles into federally qualified health centers and safety-net pediatric practices.