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Related Experiment Videos

Geographic variation in primary care visits in Iowa

L W Briggs1, J E Rohrer, R L Ludke

  • 1Graduate Program in Hospital and Health Administration, University of Iowa, Iowa City 52242, USA.

Health Services Research
|December 1, 1995
PubMed
Summary

Primary care visit rates are influenced by cost-sharing for some conditions but not others. Healthcare policies should consider price sensitivity when aiming to change primary care utilization.

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Area of Science:

  • Health Services Research
  • Healthcare Economics
  • Primary Care Medicine

Background:

  • Understanding factors influencing primary care office visit rates is crucial for healthcare planning and resource allocation.
  • Geographic variations in healthcare utilization necessitate investigation into local determinants.
  • Ambulatory Care Groups (ACGs) provide a framework for analyzing healthcare needs and utilization patterns.

Purpose of the Study:

  • To identify the key determinants affecting primary care office visit rates.
  • To analyze the impact of cost-sharing and physician supply on the utilization of primary care services across different ACGs.
  • To model geographic variations in primary care visit rates.

Main Methods:

  • Utilized Blue Cross and Blue Shield of Iowa subscriber data, cost-sharing information, physician supply data, and hospital data.

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  • Classified patient cases into Ambulatory Care Groups (ACGs).
  • Employed ordinary least squares regression models to assess geographic variations in ACG-specific primary care visit rates.

    • Main Results:

    • Regression models showed significant findings for six out of eleven ACGs.
    • Out-of-pocket expenses significantly impacted utilization in three ACGs.
    • Per capita primary care practice supply and hospital outpatient service supply showed significant effects on utilization in specific ACGs.

    Conclusions:

    • Findings indicate that the price sensitivity of primary care utilization varies across different ACGs.
    • Healthcare policy interventions aimed at modifying primary care use must consider the differential impact of cost-sharing on consumer behavior.
    • The supply of healthcare resources also plays a role in shaping primary care visit rates.