Initial examination of characteristics of patients who are high utilizers of an established primary care behavioral health consultation service.

: Obective: Although much has been studied regarding high-utilizing patients of medical services, no studies have been published regarding high-utilizing patients of integrated primary care behavioral health (PCBH) services. The primary purpose of the current study was to examine characteristics of high-utilizing patients of PCBH services and model adherence. The secondary purpose was to describe the process of conducting this research by clinicians in integrated care. METHOD: Data were obtained from electronic health records retrospectively for the study's time period, 2007-2013, for the sample of all patients who met with the behavioral health consultation team during that time. Variables include demographics, diagnoses, involvement in additional services, and scores on a patient-complexity scale for a subset of patients. Chi-square analyses, t tests and logistic regression analyses were performed. RESULTS: The results demonstrate significant associations between key demographic characteristics, use of population-based augmentation services (i.e., consulting psychiatry, care management, substance-abuse consulting), and high-utilizing status. Model adherence was maintained over time. Logistic regression analysis, controlling for high-utilizing status and number of visits, demonstrated a significant relationship between more complex diagnostic categories and behavioral health issues. DISCUSSION: There are differences between high-utilizing patients and nonhigh-utilizing patients suggestive of increased clinical severity and appropriate use of services while maintaining PCBH model integrity. The use of the population-based augmentation services is associated with high-utilizer status, and reflects the ability of these services to target those patients who most need the clinical care. (PsycINFO Database Record