Table 1.
Categorization | Telemedicine, No. (%) (N = 1553) | Ophthalmoscopy, No. (%) (N = 1553)a |
RSD, No. (%) (N = 1553) |
||
---|---|---|---|---|---|
Grader 1 | Grader 2 | Grader 3 | |||
Zone | |||||
I | 170 (10.9) | 146 (9.4) | 171 (11.0) | 132 (8.5) | 165 (10.6) |
II | 1382 (89.0) | 1403 (90.3) | 1375 (88.5) | 1204 (77.5) | 1272 (81.9) |
III | 1 (0.06) | 4 (0.3) | 7 (0.5) | 217 (14.0) | 116 (7.5) |
Stage | |||||
0 | 533 (34.3) | 891 (57.4) | 752 (48.4) | 713 (46.0) | 643 (41.4) |
1 | 551 (35.5) | 317 (20.4) | 330 (21.2) | 385 (24.8) | 431 (27.8) |
2 | 368 (23.7) | 224 (14.4) | 353 (22.7) | 321 (20.7) | 341 (22.0) |
3 | 98 (6.3) | 120 (7.7) | 116 (7.5) | 134 (8.6) | 136 (8.8) |
Plus disease | |||||
None | 1259 (81.1) | 1161 (74.8) | 1243 (80.0) | 1390 (89.5) | 1238 (79.7) |
Preplus | 229 (14.7) | 351 (22.6) | 273 (17.6) | 104 (6.7) | 265 (17.1) |
Plus | 65 (4.2) | 41 (2.6) | 37 (2.4) | 59 (3.8) | 50 (3.2) |
Disease category | |||||
No ROP | 531 (34.2) | 849 (54.7) | 737 (47.5) | 714 (46.0) | 640 (41.2) |
Mild ROP | 642 (41.3) | 297 (19.1) | 428 (27.6) | 573 (36.9) | 512 (33.0) |
Type 2 ROP | 296 (19.1) | 350 (22.5) | 327 (21.1) | 181 (11.7) | 313 (20.2) |
Type 1 ROP | 84 (5.4) | 57 (3.7) | 61 (3.9) | 85 (5.5) | 88 (5.7) |
Abbreviations: ROP, retinopathy of prematurity; RSD, reference standard diagnosis.
Aggregated results from 5 different expert clinical examiners