Demographic factors associated with physician staffing in rural areas: the experience of the National Health Service Corps.

To determine which demographic factors favor rural communities obtaining physicians, county characteristics of National Health Service Corps sites are analyzed. Through the use of a difference of means test, sites which were staffed at least once are compared with sites which were never able to obtain physicians. Since a major portion of the sites never staffed were located in the Southeast, the effect of "southeast location" as a separate, binary variable is considered. Five factors related to income, employment and education significantly (p less than 0.01) distinguish the staffed from the "never-staffed" sites. A function derived from discriminant analysis correctly classifies more than 70 per cent of the sites as staffed or never-staffed; inclusion of the southeast variable increases the number of correctly classified sites by 6 per cent. Given the presence of both socioeconomic and nondemographic constraints on rural communities, significant improvements in physician distribution may require that programmatic interventions be intensified.