Table 3.
Sensitivity, specificity, and positive predictive and negative predictive values of any DR and different grades of DR by Fundus on Phone nonmydriatic camera in comparison to Zeiss mydriatic camera
| Sensitivity % (95%CI) | Specificity % (95% CI) | PPV% (95% CI) | NPV% (95% CI) | |
|---|---|---|---|---|
| GRADE | ||||
| Any DR | 75.2% (68.1,82.3) | 95.2% (91.1,99.3) | 95.5% (99.8,98.5) | 73.9% (66.4,81.3) |
| NPDR | 71.6% (63.8,79.5) | 94.9% (90.9,98.9) | 93.8% (89.0,98.6) | 75.7% (68.8,82.6) |
| PDR | 92.9% (79.4,100) | 99.6% (98.7,100) | 92.9% (66.1,99.8) | 99.6% (97.6,99.9) |
| DME | 82.8% (73.6,92.1) | 99.4% (96.9,99.9) | 98.2% (90.1,99.9) | 94.2% (90.9,97.5) |
| STDR | 82.9% (74.0,91.7) | 98.9% (97.3,100) | 96.7% (92.1,100) | 93.5% (90.0,97.1) |
DR: Diabetic Retinopathy; NPDR: Nonproliferative DR; PDR: Proliferative DR; DME: Diabetic Macular Edema; STDR: Sight threatening DR; PPV: Positive predictive value; NPV: Negative predictive value