title: Primary-care--physician supply: policy analysis on the state level.
abstract: OBJECTIVE
  To describe a method for policy analysis on the state level for understanding frequently overlooked determinants of the current status and dynamics of primary-care-physician supply.
  
  
  METHODS
  The method used is systems analysis. The approach takes account of the changing interstate migration, tracking the professional origins of physicians, their uneven age distribution, and the considerable time delays in the system. The forecasting mathematical model consists of the physician-aging submodel, the undergraduate and graduate medical education submodel, and the migration subsystem.
  
  
  METHODS
  The necessary data were restored fully from the Virginia Board of Medicine archive database.
  
  
  RESULTS
  The analysis shows the outstanding importance of out-of-state migration for the state of Virginia: approximately two thirds of primary-care physicians are out-of-state medical graduates. In the next decade, the attrition of primary-care physicians will start to increase steadily because of the prominent bulge in the physician age distribution. Similar bulges were observed in the age distributions for some other states.
  
  
  CONCLUSIONS
  The method reveals the underlying mechanisms and principles of physician work-force reproduction. It may show which goals are feasible, and it may be used in any state for the research necessary for rational policy formulation.
authors: Virginia Commonwealth University, Richmond, USA. volchans@vcu.edu
authors: V
authors: V
authors: Olchanski
authors: D W
authors: DW
authors: Marsland
authors: L F
authors: LF
authors: Rossiter
authors: R E
authors: RE
authors: Johnson
mesh_terms: D017677:Age Distribution; D006291:Health Policy; D006280:Health Workforce / Q000706:statistics & numerical data; D008507:Medically Underserved Area; D008962:Models, Theoretical; D010821:Physicians, Family / Q000600:supply & distribution*; D011050:Policy Making; D011320:Primary Health Care; D013597:Systems Analysis; D014481:United States; D014768:Virginia