Table 1.
Patient demographics for each site and patient eye grade distribution.
| Sites | Images, Total No. (%) a |
Images per Patient Eye, Mean (SD) b |
Patients, Total No. (%) a |
Age, Mean (SD) b |
Male, Total No. (%) b |
Female, Total No. (%) b |
Patient Eyes, Total No. (%) a |
Referable, Total No. (%) b |
Non-Referable, Total No. (%) b |
Ungradable, Total No. (%) b |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2408 (8.1) | 1.5 (0.7) | 836 (7.5) | 54.2 (10.3) | 402 (48.1) | 434 (51.9) | 1576 (7.7) | 23 (1.5) | 1404 (89.1) | 149 (9.5) |
| 2 | 2268 (7.6) | 1.2 (0.5) | 994 (8.9) | 54.1 (10.0) | 537 (54.0) | 456 (45.9) | 1829 (8.9) | 108 (5.9) | 1513 (82.7) | 208 (11.4) |
| 3 | 730 (2.5) | 1.3 (0.5) | 436 (3.9) | 55.4 (10.7) | 166 (38.1) | 270 (61.9) | 576 (2.8) | 12 (2.1) | 354 (61.5) | 210 (36.5) |
| 4 | 1308 (4.4) | 1.3 (0.5) | 549 (4.9) | 55.5 (11.1) | 304 (55.4) | 245 (44.6) | 1036 (5.1) | 14 (1.4) | 906 (87.5) | 116 (11.2) |
| 5 | 338 (1.1) | 1.4 (0.6) | 170 (1.5) | 54.2 (10.8) | 109 (64.1) | 59 (34.7) | 231 (1.1) | 4 (1.7) | 193 (83.5) | 34 (14.7) |
| 6 | 1315 (4.4) | 1.3 (0.5) | 557 (5.0) | 55.1 (10.1) | 315 (56.6) | 242 (43.4) | 1024 (5.0) | 50 (4.9) | 880 (85.9) | 94 (9.2) |
| 7 | 1225 (4.1) | 1.1 (0.4) | 569 (5.1) | 56.4 (11.5) | 355 (62.4) | 214 (37.6) | 1075 (5.2) | 91 (8.5) | 845 (78.6) | 139 (12.9) |
| 8 | 2110 (7.1) | 1.2 (0.4) | 943 (8.4) | 61.9 (9.8) | 369 (39.1) | 571 (60.6) | 1812 (8.8) | 125 (6.9) | 1475 (81.4) | 212 (11.7) |
| 9 | 2952 (10.0) | 2.1 (0.9) | 752 (6.7) | 57.4 (10.1) | 260 (34.6) | 492 (65.4) | 1436 (7.0) | 22 (1.5) | 1096 (76.3) | 318 (22.1) |
| 10 | 3635 (12.3) | 1.9 (0.4) | 1066 (9.5) | 62.9 (10.5) | 416 (39.0) | 650 (61.0) | 1946 (9.5) | 49 (2.5) | 1141 (58.6) | 756 (38.8) |
| 11 | 714 (2.4) | 1.9 (1.0) | 212 (1.9) | 56.7 (9.5) | 90 (42.5) | 122 (57.5) | 368 (1.8) | 21 (5.7) | 275 (74.7) | 72 (19.6) |
| 12 | 1668 (5.6) | 1.2 (0.4) | 757 (6.8) | 58.4 (11.4) | 389 (51.4) | 367 (48.5) | 1427 (7.0) | 12 (0.8) | 1145 (80.2) | 270 (18.9) |
| 13 | 751 (2.5) | 1.3 (0.5) | 318 (2.8) | 54.4 (10.4) | 133 (41.8) | 185 (58.2) | 591 (2.9) | 20 (3.4) | 523 (88.5) | 48 (8.1) |
| 14 | 703 (2.4) | 1.2 (0.5) | 327 (2.9) | 53.7 (8.1) | 232 (70.9) | 94 (28.7) | 585 (2.9) | 22 (3.8) | 549 (93.8) | 14 (2.4) |
| 15 | 662 (2.2) | 1.4 (0.6) | 286 (2.6) | 55.8 (10.4) | 170 (59.4) | 116 (40.6) | 480 (2.3) | 10 (2.1) | 384 (80.0) | 86 (17.9) |
| 16 | 647 (2.2) | 1.1 (0.4) | 336 (3.0) | 56.3 (9.4) | 184 (54.8) | 151 (44.9) | 587 (2.9) | 17 (2.9) | 557 (94.9) | 13 (2.2) |
| 17 | 1486 (5.0) | 2.0 (0.5) | 380 (3.4) | 57.1 (11.2) | 181 (47.6) | 198 (52.1) | 725 (3.5) | 36 (5.0) | 612 (84.4) | 77 (10.6) |
| 18 | 1092 (3.7) | 1.0 (0.2) | 586 (5.2) | 66.7 (12.3) | 92 (15.7) | 494 (84.3) | 1044 (5.1) | 17 (1.6) | 685 (65.6) | 342 (32.8) |
| 19 | 2149 (7.2) | 2.9 (1.2) | 377 (3.4) | 54.5 (9.0) | 235 (62.3) | 142 (37.7) | 731 (3.6) | 27 (3.7) | 693 (94.8) | 11 (1.5) |
| 20 | 1495 (5.0) | 1.1 (0.2) | 748 (6.7) | 59.9 (11.2) | 426 (57.0) | 322 (43.0) | 1410 (6.9) | 92 (6.5) | 1204 (85.4) | 114 (8.1) |
| Total | 29,656 | 1.4 (0.7) | 11,199 | 57.7 (11.1) | 5365 (47.9) | 5824 (52.0) | 20,489 | 772 (3.8) | 16,434 (80.2) | 3283 (16.0) |
a Percentages correspond to the final dataset (total). b Mean (SD) and percentages correspond to each site. Age and gender were available for 11,191 and 11,189 patients, respectively.