Table 2.
Performance for Eye Level iRORA and cRORA Classification
| OCT Device | ||
|---|---|---|
| ZEISS (n = 143) | Spectralis (n = 167) | |
| None versus iRORA/cRORA | ||
| Sensitivity | 38.5% | 84.0% |
| Specificity | 93.1% | 93.7% |
| PPV | 35.7% | 70.0% |
| NPV | 93.8% | 97.1% |
| None/iRORA versus cRORA | ||
| Sensitivity | 60.0% | 62.5% |
| Specificity | 96.4% | 97.4% |
| PPV | 37.5% | 71.4% |
| NPV | 98.5% | 96.1% |
| None versus iRORA versus cRORA | ||
| κw | 0.37 | 0.73 |
n is the number of OCT volumes, which is equal to the number of eyes and the number of patients.
NPV, negative predictive value; PPV, positive predictive value.