Table 1.
Variable ranges and distributions for the sensitivity and specificity of AI, general practitioners, optometrists and ophthalmologists.
| Base case value | References | Range | Distribution | |
|---|---|---|---|---|
| Sensitivity | ||||
| AI for any DR | 0.870 | 51 | ±25% (0.653–1) | Triangular |
| AI for VTDR | 0.970 | 52 | ±25% (0.728–1) | Triangular |
| AI for DME | 0.950 | 52 | ±25% (0.713–1) | Triangular |
| Optometrists for any DR | 0.750 | 53 | ±10% (0.675–0.825) | Triangular |
| Optometrists for referable DR | 0.730 | 53 | ±10% (0.657–0.803) | Triangular |
| GP for any DR | 0.433 | 54, 55 | ±10% (0.390–0.476) | Triangular |
| GP for referable DR | 0.560 | 56 | ±10% (0.504–0.616) | Triangular |
| Ophthalmologists for any DR | 0.848 | 16 | 95% CI (0.794–0.933) | Triangular |
| Ophthalmologists for VTDR | 0.848 | 16 | 95% CI (0.794–0.933) | Triangular |
| Specificity | ||||
| AI for any DR | 0.907 | 51 | ±25% (0.680–1) | Triangular |
| AI for VTDR | 0.914 | 52 | ±25% (0.686–1) | Triangular |
| AI for DME | 0.929 | 52 | ±25% (0.697–1) | Triangular |
| Optometrists for any DR | 0.940 | 56 | ±10% (0.846–1) | Triangular |
| Optometrists for referable DR | 0.930 | 56 | ±10% (0.837–1) | Triangular |
| GP for any DR | 0.940 | 56 | ±10% (0.846–1) | Triangular |
| GP for referable DR | 0.980 | 56 | ±10% (0.882–1) | Triangular |
| Ophthalmologists for any DR | 0.955 | 16 | 95% CI (0.941–0.967) | Triangular |
| Ophthalmologists for VTDR | 0.955 | 16 | 95% CI (0.941–0.967) | Triangular |