title: Preventable hospitalizations in primary care shortage areas. An analysis of vulnerable Medicare beneficiaries.
abstract: BACKGROUND
  Health care outcomes among vulnerable elderly populations (defined in this study as Medicare beneficiaries who rated their overall general health as "fair" or "poor") are a growing concern. Recent studies suggest that potentially preventable hospitalizations may be useful for identifying poor ambulatory health care outcomes among vulnerable populations.
  
  
  OBJECTIVE
  To determine if Medicare beneficiaries in fair or poor health are at increased risk of experiencing a preventable hospitalization if they reside in primary care health professional shortage areas.
  
  
  METHODS
  A survey of Medicare beneficiaries from the 1991 Medicare Current Beneficiary Survey.
  
  
  METHODS
  Medicare beneficiaries living in the community.
  
  
  RESULTS
  Medicare beneficiaries in fair or poor health were 1.82 times more likely to experience a preventable hospitalization if they resided in a primary care shortage area (95% confidence interval, 1.18-2.81). After controlling for educational level, income, and supplemental insurance, Medicare beneficiaries in fair or poor health were 1.70 times more likely to experience a preventable hospitalization if they resided in a primary care shortage area (95% confidence interval, 1.09-2.65).
  
  
  CONCLUSIONS
  Medicare beneficiaries in fair or poor health are more likely to experience a potentially preventable hospitalization if they live in a county designated as a primary care shortage area. Provision of Medicare coverage alone may not be enough to prevent poor ambulatory health care outcomes such as preventable hospitalizations. Improving health care outcomes for vulnerable elderly patients may require structural changes to the primary care ambulatory delivery system in the United States, especially in designated shortage areas.
authors.affiliation: Department of Family Practice, University of Texas, San Antonio, USA. parchman@uthscsa.edu
authors.forename: M L
authors.initials: ML
authors.lastname: Parchman
authors.forename: S D
authors.initials: SD
authors.lastname: Culler
mesh_terms: D000368:Aged; D000553:Ambulatory Care; D006297:Health Services Accessibility / Q000706:statistics & numerical data; D006300:Health Services Misuse / Q000706:statistics & numerical data*; D006304:Health Status; D006306:Health Surveys; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D008507:Medically Underserved Area; D006278:Medicare / Q000706:statistics & numerical data*; D011320:Primary Health Care; D014481:United States