Perinatal interventions to prevent Adverse Childhood Experiences (ACEs): A scoping review.

Background: Preventing Adverse Childhood Experiences (ACEs) is a public health priority, and the perinatal period is a sensitive life stage when preventive interventions could be particularly effective. Protecting and buffering pregnant persons and infants from exposure to adversity can optimize children's development and health trajectories, reduce future morbidity and mortality, and even break intergenerational cycles of adversity, but no study has synthesized experimental evidence on effectiveness of interventions to address ACEs in the perinatal period.

Objectives: To (1) identify perinatal ACE prevention interventions, tested in high quality randomized control trials, with a dyadic perspective examining outcomes for mother and child; (2) describe their (a) place on the public health prevention continuum and (b) incorporation of life course characteristics that aim to optimize life health trajectories; and (3) determine which interventions show evidence of effectiveness.

Methods: We undertook a scoping review, using a modified PRISMA-Sc approach, of articles published in English between January 2000 and November 2023 identified through Psych info and PubMed using search terms for a broad range of adversities, with additional capture of articles from relevant reference lists. Interventions were included if they targeted an identified ACEs exposure or risk; were tested in randomized controlled trials (RCTs); reported outcome measures for both mother and child and were initiated during pregnancy. Interventions were further analyzed using the public health prevention continuum and Life Course Intervention Research (LCIR) characteristics frameworks. A two-tailed t test was used to ascertain the association between LCIR characteristics, and the outcomes achieved.

Results: Of 2148 articles identified, 57 were in scope for detailed analysis, yielding 53 unique interventions. Overall, 42 (74%) reported some positive impact; 37 (65%) for mothers; 37 (65%) for the child, and 32 (56%) for both. Interventions with the strongest evidence based on study quality and reported outcomes were co-parenting programs designed to improve the quality and function of the co-parenting relationship, home visiting interventions, and integrative health interventions incorporating baby massage and/or yoga. Half of effective interventions were secondary prevention focused. The mean number of life course characteristics was significantly higher in the studies that reported a positive impact on the mother and/or child (p = 0.003).

Conclusions: Few studies specifically addressed ACEs as a defined set of adversities, yet a range of perinatal interventions showed positive impacts on individual ACE risks or exposures. Intentional incorporation of life course characteristics and bundling of evidence-based components into comprehensive perinatal interventions hold promise for future ACEs prevention.