Roles of medical, nursing and clinical specialists in selected African health systems: a document review of numbers, norms, training and scope of practices.

Background: Specialist health professionals are essential for meeting the evolving health needs of Sub-Saharan Africa (SSA), especially as the burden of complex and chronic conditions rises. They contribute not only to patient care but also to teaching, research, and policy development. However, there is a significant shortfall and uneven distribution of specialists across the region, creating major challenges for health systems. This paper examines the roles, numbers, training pathways, and scope of practice of medical, nursing, and clinical specialists in four SSA countries (Kenya, Uganda, South Africa, and Nigeria), with the aim of informing more effective workforce planning. Methods: Between September 2023 and July 2024, we conducted a document review of policies and guidelines related to specialist health professionals in Kenya, Uganda, Nigeria, and South Africa. Sources included ministries of health, regulatory bodies, academic institutions, and professional associations. We focused on the composition of the specialist workforce, training pathways, and defined roles across different health cadres. Results: There is marked variation in specialist workforce composition between countries. South Africa and Kenya reported the highest numbers of medical specialists (38% and 33% of all doctors respectively), while nursing specialists were more common in South Africa (40% of all nurses) and clinical officer specialist in Kenya (10% of all clinical officers). Training pathways ranged from university-based master's programmes to national/regional fellowship systems. However, many curricula lacked essential non-clinical competencies - such as leadership, management, and communication skills - limiting specialists' effectiveness in broader health system roles. Conclusion: Strengthening the specialist workforce in SSA requires better alignment between training and health system needs. This includes integrating non-clinical competencies into curricula, enhancing data systems for workforce planning, and addressing gaps in distribution and capacity. Policy reforms and strong leadership are critical to building a sustainable, well-equipped specialist workforce to meet the growing healthcare challenges.