Table 5.
Episode Group Characteristics and Beneficiary Demographics
| Characteristic | All Episodes N (%) or Mean (SD)∗ |
ASC/Bilateral∗ Subgroup N (%) or Mean (SD)† |
ASC/Unilateral Subgroup N (%) or Mean (SD)† |
HOPD/Bilateral∗ Subgroup N (%) or Mean (SD)† |
HOPD/Unilateral Subgroup N (%) or Mean (SD)† |
|---|---|---|---|---|---|
| Total number of episodes | 583 356 | 152 008 | 262 444 | 47 584 | 121 320 |
| Total number of beneficiaries | 513 803 | 152 008 | 214 714 | 47 584 | 100 766 |
| Number of clinicians with ≥ 1 episode | 10 790 | 5798 | 7211 | 3477 | 5337 |
| Number of clinicians with ≥ 10 episodes | 8189 | 3312 | 5147 | 1338 | 2933 |
| Age (yrs) | |||||
| 0–64 | 25 857 (4.4) | 5821 (3.9) | 10 832 (4.1) | 2328 (4.9) | 6876 (5.7) |
| 65–69 | 150 557 (25.8) | 43 312 (28.5) | 66 791 (25.5) | 12 304 (25.9) | 28 150 (23.2) |
| 70–74 | 171 215 (29.4) | 47 241 (31.1) | 76 704 (29.2) | 14 022 (49.5) | 33 248 (27.4) |
| 75–79 | 132 758 (22.8) | 33 983 (22.4) | 59 675 (22.7) | 11 013 (23.1) | 28 087 (23.2) |
| 80–84 | 70 029 (12.0) | 15 549 (10.2) | 32 383 (12.3) | 5618 (11.8) | 16 479 (13.6) |
| 85–89 | 26 758 (4.6) | 5172 (3.4) | 12 916 (4.9) | 1933 (4.1) | 6737 (5.6) |
| 90–94 | 5545 (1.0) | 854 (0.6) | 2806 (1.1) | 343 (0.7) | 1542 (1.3) |
| ≥ 95 | 637 (0.1) | 76 (0.1) | 337 (0.1) | 23 (0.1) | 201 (0.2) |
| Sex | |||||
| Male | 217 354 (37.3) | 55 117 (36.3) | 100 425 (38.3) | 16 780 (35.3) | 45 032 (37.1) |
| Female | 366 002 (62.7) | 96 891 (63.7) | 162 019 (61.7) | 30 804 (64.7) | 76 288 (62.9) |
| Race/ethnicity | |||||
| Asian | 9802 (1.7) | 1722 (1.1) | 5217 (2.0) | 428 (0.9) | 2435 (2.0) |
| Black | 33 496 (5.7) | 6660 (4.4) | 15 483 (5.9) | 2096 (4.4) | 9259 (7.6) |
| Hispanic | 7164 (1.2) | 1265 (0.8) | 3648 (1.4) | 357 (0.8) | 1894 (1.6) |
| White | 513 601 (88.0) | 138 035 (90.8) | 228 687 (87.1) | 43 325 (91.1) | 103 554 (85.4) |
| Other | 12 026 (2.1) | 2388 (1.6) | 6040 (2.3) | 810 (1.7) | 2788 (2.3) |
| Unknown | 7265 (1.3) | 1938 (1.3) | 3369 (1.3) | 568 (1.2) | 1390 (1.2) |
| Average Number of Comorbidities‡ | 1.07 (1.37) | 0.98 (1.31) | 1.06 (1.36) | 1.06 (1.36) | 1.20 (1.47) |
| Reason for Medicare eligibility | |||||
| Age | 509 918 (87.4) | 135 154 (88.9) | 230 884 (88.0) | 41 123 (86.4) | 102 757 (84.7) |
| End-stage renal disease | 1224 (0.2) | 229 (0.2) | 552 (0.2) | 77 (0.2) | 366 (0.3) |
| Dual eligible | 518 (0.1) | 85 (0.1) | 236 (0.1) | 27 (0.1) | 170 (0.1) |
| Disabled | 71 696 (12.3) | 16 540 (10.9) | 30 772 (11.7) | 6357 (13.4) | 18 027 (14.9) |
ASC = Ambulatory Surgery Center; HCC = Hierarchical Condition Category; HOPD = Hospital Outpatient Department; SD = standard deviation
∗
Bilateral episodes are those with right and left eye cataract surgery (2 cataract surgery trigger codes) occurring ≤ 30 days apart in the same patient.
†
N (%) for categorical variables, mean (SD) for continuous variables, % for categorical variables, and SD for continuous variables.
‡
A complete list of HCC comorbidities is provided in Table S3 (available at www.ophthalmologyscience.org).