Table 2 Diagnostic accuracy of vitamin D (ng/mL) to discriminate no diabetic retinopathy (NO DR), non proliferative diabetic retinopathy (NPDR), proliferative diabetic retinopathy (PDR) using ROC curve analysis
From: Serum vitamin D is a biomolecular biomarker for proliferative diabetic retinopathy
Group | Sensitivity (95% CI) | Specificity (95% CI) | + TPV | − PV | AUC | Z value | p value |
|---|---|---|---|---|---|---|---|
NO DR | 40.91 (20.7–63.6) | 81.82 (59.7–94.7) | 69.2 | 58.1 | 0.581 | 0.93 | 0.352 |
NPDR | 68.18 (45.1–86.1) | 86.36 (65.1–96.9) | 83.3 | 73.1 | 0.757 | 3.51 | < 0.001 |
PDR | 86.36 (65.1–96.9) | 81.82 (59.7–94.7) | 82.6 | 85.7 | 0.91 | 8.17 | < 0.001 |