Patient care complexity as perceived by primary care physicians

Currently there are various definitions of patient care complexity with little consensus. The numbers of patients with complex care needs are increasing. To improve interventions for "complex patients" and appropriately reimburse healthcare providers it is important to determine the characteristics or contextual factors contributing to complexity.

Action research methods were used to enhance an explicit understanding of complexity. Several conferences were organized and primary care physicians, nurses, social science faculty, and patients shared their perspectives on patient care complexity. A subset of attendees created a complex patient screening tool, which was piloted by 12 primary care physicians with 267 patients to identify which factors contribute to complexity.

Complex patients were found to differ significantly from noncomplex patients based on factors associated with complexity. Based on latent class analysis, 58% of complex patients were characterized by multiple diagnoses, mental health issues, and a lack of effective participation in their care plans, while 42% of patients were considered complex because of multiple diagnoses only. In contrast, 90% of the noncomplex patients had no discernable pattern of health issues, while 10% of noncomplex patients had mental health and insurance issues that were easily managed. These results identify several factors that distinguish patients with complex care needs from those without complex care needs. The results also illustrate the heterogeneity within classes of patients identified as having complex care needs or non-complex needs.

By identifying factors contributing to complexity, this research has important implications for enhancing the management of patients with complex care needs.