Mixed-Methods Evaluation of Multiple Perspectives on Breast Cancer Control to Guide Stakeholder Selection of Implementation Strategies: The Time to A.C.T. Study in Mwanza, Tanzania

Abstract

PURPOSE Tanzania recently developed national guidelines for early diagnosis of breast cancer to combat increasing incidence and mortality. The aim of this multiphase, adaptive implementation science study was therefore to assess the local context, couple implementation strategies with identified barriers, and test these strategies to improve breast cancer control, creating an adaptive A.C.T. framework with broad applicability to other low- and middle-income country settings. METHODS The assessment phase was made up of a broad medical chart review of women seeking care for breast concerns (n = 664); a knowledge, attitudes, and practices survey of community women (n = 1,129); and a knowledge, attitudes, and practices survey of health care providers (n = 114), followed by in-depth interviews (n = 15). RESULTS Women presented to the Zonal Hospital with swelling (45%) or a palpable lump (31%), with an average symptom duration of 6 months. Most diagnoses were based on clinical exam only (54%) and included 16% breast cancer. Of these, 43% had no treatment recorded, 50% had surgery at a median of 2.5 months, and 7% had chemotherapy only. Knowledge surveys indicated that 59% of women had heard of breast cancer, but only 14% felt they knew any signs or symptoms. Encouragingly, 56% were fairly to very confident that they would notice breast changes, and 74% said they would be somewhat to very likely to seek care, with 96% noting the severity of symptoms as a motivator. Providers indicated that barriers to care included low community knowledge and repeated misdiagnosis at the primary level. The majority of providers (95%) believe clinical breast examination is feasible to implement for symptomatic patients, yet only 65% feel they have sufficient training. CONCLUSION In all, 8 larger barriers were synthesized and linked to evidence-based interventions as potential solutions. All barriers and solutions were ranked by key stakeholders on the basis of feasibility, importance, and sustainability. These were incorporated into a 3-component intervention to improve breast cancer care at the Zonal Hospital and rollout is underway.