RT Journal A1 Barr MS T1 THe need to test the patient-centered medical home JF JAMA JO JAMA YR 2008 FD August 20 VO 300 IS 7 SP 834 OP 835 DO 10.1001/jama.300.7.834 UL http://dx.doi.org/10.1001/jama.300.7.834 AB Unwarranted variation1 in the delivery of care contributes to the lack of a relationship between what is spent on health care and the quality of the services delivered.2 Other countries that spend far less per capita on health care than the United States deliver care that is more equitable, effective, and efficient and is safer and more patient-centered than is provided in the United States.3- 4 The United States is slipping further behind other countries in areas such as amenable mortality5 and ranks poorly compared with several other countries on important attributes such as access and safety.4 Research suggests that the presence and support of a robust primary care system is a major characteristic of an efficient and high-quality health care delivery. This has been demonstrated in other countries as well as in the United States.6