Geographic variation in medicare per capita spending

Area of Science:

• Health Economics
• Healthcare Policy
• Medical Services Research

Background:

• Medicare spending exhibits persistent and widespread geographical variations.
• In 1996, per capita Medicare spending ranged from $3,000 to $8,500 across different regions.

Purpose of the Study:

• To examine Medicare spending variations, their underlying causes, and potential solutions.
• To investigate whether higher Medicare spending correlates with improved quality of care or patient outcomes.

Main Methods:

• Synthesis of existing research on Medicare spending variations.
• Analysis of factors contributing to spending differences, including population characteristics, prices, and service utilization.

Main Results:

• Only 10% of Medicare regions had spending within 10% of the national average.
• Less than half of the spending variation is explained by population characteristics and price; over half is due to differences in service utilization.
• No evidence suggests higher spending areas provide better quality of care or achieve superior outcomes.

Conclusions:

• Significant variations in Medicare spending exist across regions and service types.
• Differences in the utilization of services are the primary driver of spending disparities.
• Current research indicates a lack of correlation between higher Medicare spending and improved healthcare quality or outcomes.