Table 1.
Sociodemographic Characteristics of Enrollees With Cataracts and Those Who Underwent Cataract Surgery
| Characteristic | Patients With Cataracts, No. (%) | P Value | ||
|---|---|---|---|---|
| Who Did Not Undergo Surgery |
Who Underwent Surgery |
All | ||
| Total | 807 711 (76.9) | 243 104 (23.1) | 1 050 815 (100.0) | |
| Race (n = 196 131a) | ||||
| White | 546 744 (84.1) | 176 518 (86.3) | 723 262 (84.6) | <.001b |
| Black | 43 808 (6.7) | 11 816 (5.8) | 55 624 (6.5) | |
| Latino | 36 093 (5.6) | 10 321 (5.0) | 46 414 (5.4) | |
| Asian | 17 682 (2.7) | 4284 (2.1) | 21 966 (2.6) | |
| Other | 5779 (0.9) | 1639 (0.8) | 7418 (0.9) | |
| Sex | ||||
| Male | 351 509 (43.5) | 109 106 (44.9) | 460 615 (43.8) | <.001b |
| Female | 456 202 (56.5) | 133 998 (55.1) | 590 200 (56.2) | |
| Education (n = 151 223a) | ||||
| <High school | 10 417 (1.5) | 3370 (1.6) | 13 787 (1.5) | <.001b |
| High school diploma | 253 961 (37.1) | 86 452 (40.1) | 340 413 (37.8) | |
| Some college | 260 333 (38.0) | 82 906 (38.5) | 343 239 (38.1) | |
| College diploma | 158 228 (23.1) | 42 408 (19.7) | 200 636 (22.3) | |
| Advanced degree | 1784 (0.3) | 374 (0.2) | 2158 (0.2) | |
| Income, $ (n = 188 518a) | ||||
| <30 000 | 79 956 (12.2) | 32 314 (15.7) | 112 270 (13.0) | <.001b |
| 30 000 to <60 000 | 238 263 (36.3) | 81 778 (39.6) | 320 041 (37.1) | |
| 60 000 to <100 000 | 204 497 (31.1) | 59 360 (28.8) | 263 857 (30.6) | |
| 100 000 to <125 000 | 69 895 (10.6) | 17 987 (8.7) | 87 882 (10.2) | |
| ≥125 000 | 63 905 (9.7) | 15 015 (7.3) | 78 920 (9.1) | |
| Diabetesc | ||||
| None | 561 117 (69.5) | 161 282 (66.3) | 722 399 (68.7) | <.001b |
| Uncomplicated | 148 861 (18.4) | 44 551 (18.3) | 193 412 (18.4) | |
| Complicated | 97 733 (12.1) | 37 271 (15.3) | 135 004 (12.8) | |
| Age at enrollment, y | ||||
| Mean (SD) | 61.45 (9.95) | 65.39 (10.85) | 62.36 (10.30) | <.001d |
| Median | 61.00 | 65.20 | 62.00 | |
| Time in the plan, d | ||||
| Mean (SD) | 1487.53 (971.89) | 1710.47 (975.57) | 1539.10 (977.28) | <.001d |
| Median | 1280 | 1675 | 1430 | |
| Time from enrollment to first surgery, d | ||||
| Mean (SD) | NA | 932.58 (814.14) | NA | |
| Median | NA | 702 | NA | |
Abbreviation: NA, not applicable.
a
Number of patients with missing data in records for the given variables.
b
Determined by use of the χ2 test.
c
Uncomplicated diabetes refers to diabetes with no record of end-organ damage from this condition. Complicated diabetes refers to diabetes with a record of end-organ damage (eg, nephropathy).
d
Determined by use of the 2-sample t test.