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Aims: To identify the core components or potential 'active ingredients' of sustained nurse home visiting (SNHV) programs that have demonstrated positive effects on maternal or child health, psychosocial development, or self‐sufficiency outcomes among disadvantaged families in high‐income countries. Design: Systematic review with narrative summary. Data sources: Programs were identified from searches of several reputable evidence clearing houses and the following bibliographic databases: Medline, Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycINFO, and Cochrane Central Register of Controlled Trials. Year of publication was originally restricted from 2008 ‐2018, with additional searches conducted up to 2019. Review methods: This review of SNHV program componentry builds on a previous evaluation of program effectiveness. Programs were selected for inclusion if they had been tested in a randomized or cluster‐randomized controlled trial (RCT/CRCT). Componentry characteristics related to program delivery, nurse provider, and outcome‐specific intervention content were then extracted. Results: Comparison of the seven eligible programs showed seven common core components: antenatal commencement, support to child age 2 years, at least 19 scheduled visits and experienced or highly qualified nurses with program‐specific training, caseloads of approximately 25 families, regular supervision, and multidisciplinary supports. Outcome‐specific program content was generally not well reported. Conclusion: The findings from this review have utility in guiding the development of minimum standard benchmarks and best‐practice recommendations for SNHV programs and call for more detailed publication of core content componentry in the SNHV literature. Impact: Identification of the core componentry underpinning program effectiveness should inform policy decisions on program selection, adaptation for specific populations, and quality control. Such evidence‐based decision‐making should in turn lead to better maternal and child outcomes among disadvantaged families in high‐income countries, reducing societal and economic burdens of inequity. [ABSTRACT FROM AUTHOR]

Aims: To systematically evaluate published experimental studies of sustained nurse home visiting (SNHV) programs. This review summarizes the evidence and identifies gaps in the literature to inform practice, policy, and future research. Design: Restricted systematic review with narrative summary. Data Sources: Databases searched were Medline, CINAHL, PsycINFO, and Cochrane Central Register of Controlled Trials. Year of publication was originally restricted from 2008 to the date of search (13 February 2018, with supplementary searches conducted to identify more recent publications (up to 2019). Several reputable evidence clearinghouses were also searched. Review Methods: Studies were included if they used a randomized or cluster‐randomized controlled trial to evaluate a home visiting program that: (a) targeted disadvantaged mothers; (b) commenced during pregnancy or prior to the child's first birthday; (c) had an intended duration of at least 12 months from the time of enrolment; and (d) was substantively delivered by nurses or midwives. Meta‐analyses and reviews of studies meeting these criteria were also included. A quality appraisal was conducted for all studies. Results: Of 1,393 total articles, 30 met inclusion criteria. Seven specific SNHV programs were identified. Each demonstrated evidence of a positive statistical effect on at least one child or maternal outcome. Conclusion: Sustained nurse home visiting programs benefit disadvantaged families, though effects vary across outcomes and subgroups. Further research is needed to discern the critical components of effective programs. Impact: As SNHV programs have gained policy appeal, the need to evaluate the evidence‐base supporting such interventions has become imperative. The findings of this review will assist policy‐makers and practitioners in high‐income countries to make evidence‐informed decisions about which programs are best suited to addressing specific maternal and child outcomes for disadvantaged families. This should in turn ameliorate some of the inequalities in child development that have significant social and economic costs. [ABSTRACT FROM AUTHOR]