The impact of physician–nurse task shifting in primary care on the course of disease: a systematic review

Trained nurses may have the ability to achieve outcome results that are at least similar to physicians' for managing the course of disease, when following structured protocols and validated instruments. The evidence, however, is limited by a small number of studies reporting a broad range of disease-specific outcomes; low reporting standards of interventions, roles and clinicians' characteristics, skills and qualifications; and the quality of studies. More rigorous studies using validated tools could clarify these findings.