Our Interprofessional Education and Collaborative Practice (IPECP) Nexus previously reported significant reductions in Emergency Department (ED) visits, hospitalizations, hemoglobin A1c levels, and patient charges. This study examines sustainability of these results over two additional years and replication in two subsequent independent patient cohorts. Participants in the sustainability cohort (N = 276) met ≥1 of the following criteria: (a) ≥3 ED visits in first or second half of the year, (b) hemoglobin A1c level ≥ 9, or (c) Length of Stay, Acuity, Comorbidities, and ER (Emergency Room) Visits (LACE) score ≥ 10. Participants in two replicability cohorts (N = 255) and (N = 160) met the same criteria, but the LACE criterion was changed to ≥3 hospitalizations in baseline years. The Nexus, housed in a family medicine (FM) residency clinic, included professionals and students from multiple disciplines. IPECP skills and interventions included communication, team building, and conflict engagement skills training, daily huddles and pre-visit planning, immediate consultations, small teamlet IPECP interactions, and weekly IPECP case conferences for complex patients. Original health improvements and charge reductions were sustained for two additional years for ED visits, hospitalizations, A1c, and patient charges, and replicated in two additional patient cohorts. The IPECP Nexus interventions were associated with Quadruple Aim outcomes while training the next generation of health care professionals.
Keywords: Interprofessional collaborative practice; clinical and cost outcomes; family medicine residency; nexus; primary care.