Quantitative database.

From 2015 to 2019, the "RIPSEC" program launched a mentorship program, transforming the Walungu health zone, in eastern crisis-affected Democratic Republic of Congo, into a “Learning and Research Zone” (LRZ). As part of the program, a local university was tasked with strengthening the LRZ manager’s leadership capacities, including efforts to troubleshoot challenges related to the proliferation of informal healthcare facilities (IHFs). IHFs are unregulated healthcare structures operating on the fringes of the law, and claiming to offer cheaper, higher-quality care to the local population. This study evaluates the impact of RIPSEC mentorship on leadership development and the performance in the Walungu LRZ, particularly concerning the utilization of integrated curative health services in competition with IHFs. We used a mixed method approach, combining retrospective analysis of some key health indicators before (2014) and during RIPSEC program (2014 vs. 2015–2019), and in-depth qualitative interviews with members of the LRZ management team. Quantitative data were presented as frequencies and proportions. Simple linear regression (p