Patient-centered education increasingly is recognized as an integral feature of success in today's health care environment. Arising in part out of the principles of informed consent and the chronic care model, patient-centered education has taken a new turn as a means of engaging the patient in his or her own disease process and care., Critical to the effectiveness of any patient-centered educational process, especially educational interventions addressing chronic disease management, is an agreement between the patient and physician about the chronic condition itself. What does it mean? What is affected? What is the impact of treatment?