The Four Quadrant Model for Integrating Health Care for Mental Health and Substance Abuse Patients
The Four Quadrant Model is a proposed model for the clinical integration of mental wellness and behavioral well being services. A focus on the prevalence of co-occurring disorders (i.e. depression and alcoholism) is paramount in this model. The Four Quadrant Model builds on the 1998 consensus document for mental health and substance abuse/addiction service integration. This model for a comprehensive, continuous and integrated system of care describes differing levels of mental wellness and substance abuse integration and clinician competencies based on the four-quadrant model, divided into severity for each disorder:
> Quadrant I: Low mental health – low substance abuse, served in primary care
> Quadrant II: High mental well being – low substance abuse, served in the mental health system by staff who have substance abuse competency
> Quadrant III: Low mental health – high substance abuse, served in the substance abuse program by staff who have mental health competency
> Quadrant IV: High mental wellness – high substance abuse, served by a totally integrated mental well being and substance abuse program