Table 2.
Grading Exercise Results for the Eleven Graders
| Grader | Grader Type | True Positives | False Negatives | False Positives | Total Lesions Detected | Sensitivity | Positive Predictive Value | Modified Accuracy |
|---|---|---|---|---|---|---|---|---|
| 1 | CAM | 106 | 1 | 0 | 107 | 99.1% | 100.0% | 99.1% |
| 2 | CAM | 106 | 1 | 1 | 108 | 99.1% | 99.1% | 98.1% |
| 3 | CAM | 107 | 0 | 3 | 110 | 100.0% | 97.3% | 97.3% |
| 4 | CAM | 105 | 2 | 3 | 110 | 98.1% | 97.2% | 95.5% |
| 5 | CAM | 105 | 2 | 1 | 108 | 98.1% | 99.1% | 97.2% |
| 6 | BPEI | 106 | 1 | 0 | 107 | 99.1% | 100.0% | 99.1% |
| 7 | BPEI | 107 | 0 | 0 | 107 | 100.0% | 100.0% | 100.0% |
| 8 | BPEI | 107 | 0 | 1 | 108 | 100.0% | 99.1% | 99.1% |
| 9 | BPEI | 105 | 2 | 0 | 107 | 98.1% | 100.0% | 98.1% |
| 10 | BPEI | 106 | 1 | 0 | 107 | 99.1% | 100.0% | 99.1% |
| 11 | BPEI | 105 | 2 | 1 | 108 | 98.1% | 99.1% | 97.2% |
Abbreviations: CAM = Classification of Atrophy Meeting; BPEI = Bascom Palmer Eye Institute