Understanding health professional role integration in complex adaptive systems: A multiple-case study of Physician Assistants in Ontario, Canada

Abstract

Background To meet the complex needs of healthcare delivery, the Ministry of Health and Long Term Care (MOHLTC) introduced Physician Assistants (PAs) into the Ontario health care system in 2006 to help increase access to care, decrease wait times, and improve continuity of care. Integration of new health professional roles is often stymied by role resistance and funding barriers. The characterization of healthcare organizations as complex adaptive systems (CAS) may offer insight into the relationships and interactions that optimize and restrict successful PA integration. The aim of this study is to explore the integration of PAs across multiple settings and to understand the PA role within complex adaptive systems. Methods An exploratory, multiple-case study was used to examine PA role integration in four settings: family medicine, emergency medicine, general surgery, and inpatient medicine. Interviews were conducted with 46 healthcare providers and administrators across 13 hospitals and 6 clinics in Ontario, Canada. Analysis was conducted in three phases: inductive thematic analysis within each of the four cases; a cross-case thematic analysis; and a broader exploration of cross-case patterns pertaining to specific complexity theory principles of interest. Results Support for PA contributions across various health care settings, the importance of role awareness, supervisory relationship attributes, and role vulnerability (in relation to sustainability and funding) are interconnected and dynamic in hospital and community settings. Findings represent the experiences of PAs and other healthcare providers, and demonstrate how the PA’s willingness to work and ability to build relationships within existing health systems allows for the establishment of interprofessional, collaborative, and person-centered care. As a self-organizing agent in complex adaptive systems (i.e. health organizations), PA role exploration revealed patterns of team behavior, non-linear interconnections, open relationships, dynamic systems, and the legacy of role implementation as defined by complexity theory. Conclusions By exploring the role of PAs across multiple sites, the complexity theory lens concurrently fosters an awareness of emerging patterns, relationships and non-linear interactions within the defined context of the Ontario healthcare system. By establishing collaborative, interprofessional care models in community and hospital settings, PAs are making a significant contribution to Ontario healthcare settings.