AAO: Mortality after cataract surgery in the U.S. Medicare population
as presented at the annual meeting of the American Academy of Ophthalmology
In cataract patients who are being treated within the U.S. Medicare system, cataract surgery is associated with reduced two-year mortality, especially in patients who are older or with severe cataracts. Those were the conclusions of a study presented at AAO, held in October in Chicago.
Researchers at Brown University in Providence, Rhode Island, and other institutions, used a 5% random sample of 2011 Medicare files to identify cataract patients and their demographics, systemic and ocular comorbidities, and cataract severities. Odds ratios (ORs) of two-year mortality were calculated for cataract patients with and without surgery, adjusting for all covariates.
The investigators found that of 328,422 cataract patients, 14,616 (4.5%) died within two years. Adjusted ORs of cataract surgery on mortality were 0.94 for all patients, 0.79 for patients >/=80 years old, and 0.85 for patients with severe cataract.
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