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Cataract surgery among Medicare beneficiaries
Oliver D Schein1, Sandra D Cassard, James M Tielsch
1Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. rwhite58@jhmi.edu
Ophthalmic Epidemiology
|September 18, 2012
Summary
Cataract surgery rates vary significantly among Medicare beneficiaries in the US, with notable differences by age, sex, and race. Higher surgical volume is linked to ambulatory surgical centers and shorter intervals between procedures.
Area of Science:
- Ophthalmology
- Public Health
- Epidemiology
Background:
- Cataract surgery is a common procedure for Medicare recipients.
- Understanding the epidemiology of cataract surgery is crucial for healthcare planning and resource allocation.
Purpose of the Study:
- To describe the epidemiology of cataract surgery among Medicare beneficiaries in the United States.
- To analyze cataract surgery rates based on demographic factors and provider characteristics.
Main Methods:
- Utilized Medicare claims data from 2003-2004 to identify cataract surgery procedures.
- Calculated national surgery rates stratified by age, sex, race, and state.
- Examined surgical volume by facility type, surgeon characteristics, and time interval between first- and second-eye surgery.
Main Results:
- The national cataract surgery rate was 61.8 per 1000 Medicare beneficiary person-years.
- Rates were higher in females and individuals aged 75-84.
- Black beneficiaries had a 30% lower surgery rate than white beneficiaries, after adjusting for age and sex.
- Surgeons performing over 500 surgeries annually (5% of surgeons) completed 26% of all procedures.
- Increased surgical volume correlated with ambulatory surgical center use and reduced time between surgeries for the same patient.
Conclusions:
- Significant variations in cataract surgery rates exist within the US Medicare population.
- These variations are associated with race, sex, age, and provider characteristics.
- Further research may inform targeted interventions to address disparities and optimize surgical care.
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