Table 1:
Cohort characteristics
| Characteristics | Total (N=1 276 350) | Non-Hispanic White (N=1 055 989) | Black/Afric an American (N=95 516) | Hispanic (N=67 083) | Asian/Pacif ic Islander (N=32 576) | p-value |
|---|---|---|---|---|---|---|
| Beneficiaries with diagnosis codes for glaucoma, n (%) | 78 526 (6.2) | 61 543 (5.8) | 10 363 (10.8) | 4 247 (6.3) | 2 373 (7.3) | |
|
| ||||||
| Age, mean (SD) | 79.1 (7.9) | 79.5 (7.9) | 77.5 (7.8) | 78.0 (7.4) | 78.1 (7.6) | <0.001a |
| Female, n (%) | 47 794 (60.9) | 37 191 (60.4) | 6 550 (63.2) | 2 665 (62.8) | 1 388 (58.5) | <0.001b |
| Enrollment-based socioeconomic status, n (%) | ||||||
| Full/partial dual eligibility for Medicare & Medicaid | 10 825 (13.8) | 4 640 (7.5) | 3 031 (29.2) | 2 029 (47.8) | 1 125 (47.4) | <0.001b |
| Part A/B state buy-in | 10 065 (12.8) | 4 119 (6.7) | 2 854 (27.5) | 1 975 (46.5) | 1 117 (47.1) | <0.001b |
| Full/partial Part D limited income subsidies | 12 305 (15.7) | 5 493 (8.9) | 3 488 (33.7) | 2 175 (51.2) | 1 149 (48.4) | <0.001b |
| Two or more low-income indicators ( | 10 841 (13.8) | 4 636 (7.5) | 3 041 (29.3) | 2 040 (48.0) | 1 124 (47.4) | <0.001b |
| Glaucoma prevalence (%)c | 6.2 | 5.8 | 10.8 | 6.3 | 7.3 | |
| Diagnosis code for severe glaucoma, n(%) | 6 995 (8.9) | 5 228 (8.5) | 1 176 (11.3) | 383 (9.0) | 208 (8.8) | <0.001b |
a
ANOVA
b
Pearson’s X2 test
c
Calculated by dividing the number of beneficiaries with glaucoma meeting eligibility criteria, divided by all beneficiaries in the Medicare 5% enhanced sample >65 years, excluding beneficiaries without continuous Medicare enrollment and those with hospice claims between 1/1/14–7/1/14.