Table 1 Dataset summary
Data source | Subject characteristics | Grading distribution | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
No. of images | No. of eyes | No. of individuals | Age Mean (SD) | Female no./total individuals (%) | Camera | No. of gradable images/total images (%) | No. of no MM/total gradable images (%) | No. of TF/total gradable images (%) | No. of PM/total gradable images (%) | |
Development dataset | ||||||||||
 Qingdao Eye Hospital North Branch of Shandong First Medical University | 15,857 | 15,857 | 8156 | 50.8 (11.3) | 3809 (46.7) | Canon, Syseye | 14,356 (90.5) | 11,856 (82.6) | 996 (6.9) | 1504 (10.5) |
 Rongcheng Eye Hospital | 15,683 | 15,683 | 7919 | 52.1 (15.4) | 3857 (48.7) | Zeiss | 13,876 (88.5) | 10,647 (76.7) | 1749 (12.6) | 1480 (10.7) |
 Qilu Hospital of Shandong University (Qingdao) | 4915 | 4915 | 2507 | 55.2 (13.2) | 1243 (49.6) | Canon | 4393 (89.4) | 2987 (68.0) | 620 (14.1) | 786 (17.9) |
 No. 971 Hospital of the People’s Liberation Army | 4139 | 4139 | 2184 | 59.8 (12.9) | 1262 (57.8) | Topcon | 3890 (94.0) | 1896 (48.7) | 902 (23.2) | 1092 (28.1) |
External testing datasets | ||||||||||
 Shandong Eye Hospital of Shandong First Medical University | 7869 | 7869 | 4024 | 54.5 (15.5) | 1898 (47.2) | Topcon | 7077 (89.9) | 4884 (69.0) | 1687 (23.8) | 506 (7.2) |
 Qingdao Eye Hospital of Shandong First Medical University | 8685 | 8685 | 4440 | 49.2 (17.5) | 2264 (51.0) | Kowa | 7909 (91.1) | 6508 (82.3) | 747 (9.4) | 654 (8.3) |