Correlation Between Ophthalmology Market Saturation and Medicare Utilization Rates

Area of Science:

• Ophthalmology
• Health Services Research
• Public Health

Background:

• Understanding factors influencing ophthalmologic service utilization is crucial for equitable eye care.
• Medicare Fee-For-Service (FFS) beneficiaries represent a significant population for whom access to eye care is vital.
• Geographic variations in service usage necessitate an examination of market saturation and demographic influences.

Purpose of the Study:

• To analyze ophthalmologic service usage among Medicare FFS beneficiaries.
• To investigate the relationship between service usage, geographic market saturation, and demographic factors.
• To identify contextual influences on eye care utilization.

Main Methods:

• A cross-sectional study design was employed.
• Data from Centers for Medicare & Medicaid Services, US Census Bureau, and other federal agencies were utilized.
• Negative binomial regression models assessed associations between service usage and demographic/population variables at county and state levels.

Main Results:

• Ophthalmologic service usage varied significantly across geographies.
• Usage was associated with demographics: lower for non-white races, higher for females, and linked to higher education levels.
• Poverty and lower Multidimensional Deprivation Index scores correlated with lower usage, while higher urban-influence codes showed higher usage.
• No significant correlation was found between service usage and ophthalmologist market saturation.

Conclusions:

• Ophthalmologic service utilization is significantly shaped by population demographics.
• Increasing the density of ophthalmologists alone is insufficient to boost eye care service usage.
• Targeted interventions considering socioeconomic and demographic factors are needed to improve eye care access.