Tremendous time and resources have been dedicated to enhancing quality of care, including major reports
1 and an ongoing commitment from the National Institutes of Health and Agency for Healthcare Research and Quality for implementation and dissemination research. These and other sources have documented major shortcomings in primary medical care in the United States,
2 including serious difficulties in providing high quality chronic care,
3 preventive services,
4 and care for mental health and emotional problems.
5,6 In response to these shortcomings, evidence-based guidelines have been constructed and new models of care proposed that are intended to be more responsive to changing patient demographics and multiple chronic health problems.
7 Much effort has been placed on knowledge transfer strategies that focused on improving clinical performance. Some of these have focused on a single health problem or clinical process, while others have focused on overall organizational change. A variety of system change strategies, derived from Total Quality Improvement methods and Total Quality Improvement application to hospital care,
8 have been used to stimulate improvements in primary care; however, these have been disappointing.
9,10Several characteristics of community-based primary care practices prevent them from realizing their potential to provide high quality care. First, current configurations of primary care practices evolved from an acute care model based on the primacy of the physician role, archaic information systems, and a preponderance of patients with time limited acute illnesses, and have not adapted to accommodate the longitudinal, prospective, population-based nature of chronic illness care.
7,11 For example, practices often lack office systems to support improved chronic illness patient self-management, delegation, care management, and systematic tracking to assure optimal processes and outcomes of diabetes care. Practices operate on a narrow financial margin, have minimal flexibility in resource use, and are quite different from those systems in which adoption of chronic care management components have been demonstrated.
12,13 Many mixed-payor primary care practices do not have sophisticated management teams, are nearly consumed by survival in the current health care environment, and are not equipped for the challenge of managing the fundamental practice changes needed to improve care.
14 Finally, primary care physicians deal with a wide range of interdependent comorbid conditions and are hesitant to adopt best-practice models on a disease-by-disease basis.
Advocates of the widely touted Chronic Care Model suggest that scarce resources be spent reorganizing office processes and systems to encourage and enable clinicians to improve care among all chronic diseases rather than implementing parallel systems for every deserving condition.
9,15 Similarly, major primary care professional organizations and the National Committee for Quality Assurance or NCQA emphasize the need for more wholesale primary care practice transformation to create what is referred to as the “patient-centered medical home” (PCMH).
16,17 The concept of a PCMH has been propelled into the national debate on health care reform making understanding the change process of critical interest to health care systems, funders, and others involved in health care reform.
18,19This manuscript highlights critical findings derived from a collaborative teams' 15-year developmental program of research aimed at enhancing quality of care in primary care practices. In a recent series of publications, quality improvement research has been criticized for not capturing a sufficient understanding of the organizational change process or why interventions do or do not work.
20 This is due in part because research is often conceived of as individual, largely independent studies or series of studies; however, this conceptualization fails to capture the potential learning that can only be gleaned from implementing research as an ongoing, longitudinal development process with multiple interdependencies among investigators and projects. Collaborative multidisciplinary teams working across projects and over time have built the capacity to learn well beyond what would have been possible by individual investigators or investigative teams working on a single project.
21 Since much of the important learning from studies derives from the way sequential and concurrent studies are able to inform each other, the evolution of the program of research and the context for key findings gained along the way is critically important. The goal of this article is to describe the cumulative and synergistic learning that arises using a longitudinal, collaborative, mixed methods developmental design that facilitates a more comprehensive and richer understanding of practice development than would be possible even with tightly linked sequential studies. These studies not only inform each other in the traditional way, but were developmental in terms of research questions, theory development, research methodologies, and interpretation of findings.