Table 1 Baseline characteristics of the development and clinical validation datasets.
Characteristics | Development set | Primary clinical validation set | Secondary clinical validation set |
|---|---|---|---|
Dataset | Thailand dataset | Thailand dataset | EyePACS-DME dataset |
Number of patients | 4035 | 697 | 554 |
Number of fundus images | 6039 | 1033 | 990 |
Camera used for fundus images | Kowa VX-10 | Kowa VX-10 | Canon CR-DGi |
OCT device used for determining ci-DME | Heidelberg Spectralis | Heidelberg Spectralis | Optovue iVue |
Age: mean, years (SD) | 55.6 (10.8) n = 6038 | 55.8 (10.8) n = 1033 | 62.0 (9.8) n = 990 |
Gender (% male) | 60.8% n = 6036 | 62.4% n = 1031 | 50.1% n = 990 |
Central retinal thickness: mean, μm (SD) | 263.8 (146.5) n = 6039 | 258.4 (132.8) n = 1033 | 254.4 (56.3) n = 990 |
ci-DME, Center Point Thickness ≥ 250 μm in Thailand dataset. Central Subfield Thickness ≥ 300 μm in the Eyepacs-DME dataset | 28.3% n = 6039 | 27.2% n = 1033 | 7.8% n = 990 |
Subretinal fluid presence | 15.7% n = 6039 | 15.1% n = 1033 | NA |
Intraretinal fluid presence | 45.5% n = 6039 | 46.3% n = 1033 | NA |
