In medicine, compliance (synonymous with<unk>  capacitance) describes the degree to which a patient correctly follows medical advice. Most commonly, it refers to medication or drug compliance, but it can also apply to medical device use, self care, self-directed exercises, or therapy sessions. Both patient and health-care provider affect compliance, and a positive physician-patient relationship is the most important factor in improving compliance, As of 2003, US health care professionals more commonly used the term<unk> " to a regimen rather than "compliance", because it has been thought to reflect better the diverse reasons for patients not following treatment directions in part or in full. Additionally, the term<unk> includes the ability of the patient to take medications as prescribed by their physician with regards to the correct drug, dose, route, timing, and frequency. It has been noted that compliance may only refer to passively following orders. The term concordance has been used in the United Kingdom to involve a patient in the treatment process to improve compliance, and refers to a 2003 NHS initiative. In this context, the patient is informed about their condition and treatment options, involved in the decision as to which course of action to take, and partially responsible for monitoring and reporting back to the team. Informed intentional non-adherence is when the patient, after understanding the risks and benefits, chooses not to take the treatment. As of 2005, the preferred terminology remained a matter of debate. As of 2007, concordance has been used to refer specifically to patient<unk> to a treatment regimen which the physician sets up collaboratively with the patient, to differentiate it from<unk> to a physician-only prescribed treatment regimen. Despite the ongoing debate,<unk> has been the preferred term for the World Health Organization, The American Pharmacists Association, and the U.S. National Institutes of Health<unk> Research Network. The Medical Subject Headings of the United States National Library of Medicine defines various terms with the words<unk> and compliance. Patient Compliance and Medication<unk> are distinguished under the MeSH tree of Treatment<unk> and Compliance.
Adherence 
Compliance 
Therapeutic relationship
Component causes
Concept creep
Risk factor
Consensual response
Residency 