Understanding barriers and facilitators to voluntary medical male circumcision and Spear and Shield uptake in Zambian community health centers

Voluntary medical male circumcision (VMMC) has been an effective method for reducing the risk of HIV transmission by 50%–70% in Eastern and Southern Africa. The Spear and Shield (S&S) program is a community health center (CHC)-based biobehavioral VMMC HIV prevention intervention that increased VMMC uptake in male CHC attendees in Lusaka, Zambia. Qualitative data organized using the Consolidated Framework for Implementation Research (CFIR) has been used to characterize factors that may impact S&S/VMMC implementation. This manuscript uses the CFIR to examine S&S implementation across 96 CHCs in four Zambian provinces using a mixed-methods approach to (a) quantify successful S&S implementation; (b) understand how CFIR domains might provide insight into the degree of implemental success; (c) identify major themes among least and most successful CHCs; and (d) help guide future prevention efforts and policy related to VMMC promotion in the Zambian CHC context. In contrast with CFIR quantitative analyses, 12 major qualitative themes associated with the least and most successful CHCs provided unique insight into S&S and VMMC implementation and guidance for future implementation studies. Themes included lack of resources (staff, space, transportation) for the former and strong staff relationships and active community engagement for the latter. The CFIR framework appears extremely useful for the identification of qualitative themes related to intervention implementation, and reduction of qualitative data for quantitative analyses may sacrifice more nuanced information. Consideration of CFIR themes may be useful to inform HIV prevention strategies in Zambia and similar contexts.