Structuring student learning in the primary care setting: where is the evidence?

Over the past two decades, the majority of medical schools in the USA have embarked upon curricular initiatives to enhance the teaching of ambulatory or office-based primary care. Identifying characteristics of these primary care experiences that make for the most effective learning is a top priority in medical education research. In this paper we examine what is known about the influence of variability in the structure of primary care experiences on student learning outcomes. We examine the questions of how rotations are scheduled, who does the teaching and where the teaching takes place. Given the variability in curricula across the 125 accredited medical schools in the USA and the absence of agreed-upon objectives, outcomes or assessment measures for primary care education, it is not surprising that the current literature has fallen short in providing definitive answers. There is much debate about the benefits of community vs. campus sites, longitudinal vs. block experiences, and the influence of specialty training of the preceptor, but little in the current literature to guide and substantiate a programme's choice. What can be concluded with relative confidence is that clinics currently offer more active student experiences than do private offices, that students may be more satisfied with rural experiences than with urban or suburban experiences, and that longitudinal and block experiences have different learning advantages. Research in primary care medical education will benefit from the current movement towards a cross-institutional consensus on educational objectives and outcome measures and on the general application of a more rigorous research methodology.