Partnership building for scale-up in the Veteran Sponsorship Initiative: Strategies for harnessing collaboration to accelerate impact in suicide prevention

Objective: To evaluate the implementation and trust-building strategies associated with successful partnership formation in scale-up of the Veteran Sponsorship Initiative (VSI), an evidence-based suicide prevention intervention enhancing connection to U.S. Department of Veterans Affairs (VA) and other resources during the military-to-civilian transition period. Data Sources and Study Setting: Scaling VSI nationally required establishing partnerships across VA, the U.S. Department of Defense (DoD), and diverse public and private Veteran-serving organizations. We assessed partnerships formalized with a signed memorandum during pre- and early implementation periods (October 2020–October 2022). To capture implementation activities, we conducted 39 periodic reflections with implementation team members over the same period. Study Design: We conducted a qualitative case study evaluating the number of formalized VSI partnerships alongside directed qualitative content analysis of periodic reflections data using Atlas.ti 22.0. Data Collection/Extraction Methods: We first independently coded reflections for implementation strategies, following the Expert Recommendations for Implementing Change (ERIC) taxonomy, and for trust-building strategies, following the Theoretical Model for Trusting Relationships and Implementation; a second round of inductive coding explored emergent themes associated with partnership formation. Principal Findings: During this period, VSI established 12 active partnerships with public and non-profit agencies. The VSI team reported using 35 ERIC implementation strategies, including building a coalition and developing educational and procedural documents, and trust-building strategies including demonstrating competence and credibility, frequent interactions, and responsiveness. Cultural competence in navigating DoD and VA and accepting and persisting through conflict also appeared to support scale-up. Conclusions: VSI's partnership-formation efforts leveraged a variety of implementation strategies, particularly around strengthening stakeholder interrelationships and refining procedures for coordination and communication. VSI implementation activities were further characterized by an intentional focus on trust-building over time. VSI's rapid scale-up highlights the value of partnership formation for achieving coordinated interventions to address complex problems.