The Results

The results from the randomized controlled trial are forthcoming.

Study enrollment ended in March 2020, and results from the academic analysis will be released once enough time has elapsed for births and subsequent outcomes to be observed for all of the study participants. Please subscribe to be notified when this page is updated.

Visit the Pay for Success page to learn about the interim outcomes of the Pay for Success project, released in Spring 2021.

How this study adds to prior evidence

Beginning in 1977, three randomized controlled trials of the Nurse-Family Partnership have been conducted in New York, Colorado, and Tennessee. The three trials found positive outcomes on health and well being for mothers and their children. Families have been studied over 20 years and continue to be studied today. This evidence has informed the scale up of Nurse-Family Partnership’s model with government and philanthropic resources.

The South Carolina Nurse-Family Partnership Study adds to the prior evidence by addressing the following key questions:

  • What can we learn about the comprehensive impact of the Nurse-Family Partnership by looking at a wide range of health and well-being outcomes across large-scale, linked, longitudinal administrative data sets over a long time-horizon?
  • What is the impact of Nurse-Family Partnership when provided via a Medicaid waiver to reach a broader population (first time pregnant women eligible for Medicaid) instead of targeted at the most vulnerable?
  • How has the impact of the Nurse-Family Partnership changed in the 20 years since the initial studies? How do changing contexts–such as teen pregnancy rates, smoking rates, and the availability of long-lasting reversible contraceptives–affect the program’s impact?

Primary Study Outcomes

The trial’s primary outcomes are:

Adverse birth outcomes: We define this outcome as having a preterm birth (less than 37 weeks’ gestation) or a newborn being small for gestational age (less than 10th percentile of US births conditional on gestational age), having low birth weight (less than 2,500 grams), or experiencing perinatal mortality (fetal death at or after 20 weeks of gestation or mortality in the first 7 days of life).

Major childhood injury, suspected abuse, or neglect: We define this outcome as having a health care encounter or mortality associated with International Classification of Diseases (ICD) codes indicating either a major child injury or suspicion of abuse or neglect.

Birth spacing: We define this outcome based on whether a subsequent birth occurs less than 21 months after the birth of the child born from the pregnancy during which the mother was enrolled in the study.

Long-Term Outcomes

The study will examine the long-term causal effects of the NFP program on a range of outcomes including: maternal and child health, child school-readiness and performance, maternal educational attainment, criminal justice involvement, and use of government programs and social services such as SNAP and Medicaid.

Please note that the academic study’s definition of study outcomes differ from the outcomes defined in the Pay For Success contract. Please visit the Pay for Success page for more details.

South Carolina Nurse-Family Partnership Study Timeline


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