Real-World Cataract Surgery Complications and Secondary Interventions Incidence Rates: An Analysis of US Medicare Claims Database

Table 1

Demographic characteristics of patients with cataract diagnosis in the Medicare fee-for-service population.

	Cataract diagnosis
	Number	Percent
Total number of procedures	133,896
IOL implants
Claims by cataract surgery (66982)
Claims by cataract surgery (66984)
Procedures by setting of care
Outpatient	36,942	27.60%
Ambulatory surgical center	95,426	71.30%
Other carrier claims	1,528	1.10%
Total number of patients	82,246
Age, mean (95% CI)	73.76 (73.71, 73.80)
Age group
<65	3,010	3.6%
65–74	44,560	54.1%
75–84	29,054	35.4%
≥85 years	5,622	6.80%
Sex
Female	47,858	58.20%
Male	34,388	41.80%
Ethnicity
Asian	803	1.00%
Black	4,541	5.50%
Hispanic	439	0.50%
Native American	348	0.40%
White	73,892	89.80%
Others	1,285	1.60%
Unknown	938	1.10%
Census region
Midwest	19,141	23.30%
Northeast	14,150	17.20%
South	33,981	41.30%
West	14,731	17.90%
Others	196	0.20%
Unknown	47	0.10%