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PEDIATRICS Vol. 107 No. 3 March 2001, p. e31

ELECTRONIC ARTICLE:
Vaccination Coverage and Physician Distribution in the United States, 1997

Received Aug 31, 2000; accepted Oct 9, 2000.

Charles W. LeBaron, Mehran Massoudi, John Stevenson, and Bridget Lyons

From the National Immunization Program, Centers for Disease Control and Prevention, Atlanta, Georgia.

Background.  How many physicians are needed in the United States and how they should be allocated geographically and among specialties has been the subject of intense debate, a debate that has often focused more on costs to third-party payers and government than on benefits to health. Child health is a central aspect of public health, and immunization is one of its most cost-effective and easily measured interventions.

Objective.  To examine the association of immunization rates and delivery characteristics with the distribution of child health physicians in the United States in 1997.

Design.  Cross-sectional ecological study, using the state as the unit of analysis, immunization rates and delivery characteristics (from the National Immunization Survey) as the main outcome measures, concentration of the principal physician specialties providing routine care to children (pediatric, family, and general physicians from the American Medical Association Masterfile) as the main risk factor, while controlling for demographic and economic factors (from the Bureau of the Census and other sources).

Results.  Of the 96 689 physicians providing routine care to children, 37% were pediatric, 49% family, and 14% general physicians. Higher rates of vaccination, private sector vaccination, and increased numbers of public and private vaccination sites were all associated with the concentration of pediatricians but not of family or general physicians. The distribution of pediatricians was strongly associated with the distribution of residency positions.

Conclusions.  Pediatrician distribution is a strong correlate to immunization rates and delivery characteristics. Opportunities to affect pediatrician distribution may exist with allocation of residency positions.  Key words:  physician distribution, immunization, workforce.




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