Table 2.
True and false ripple on spike detector sensitivity, specificity, precision i.e. positive predictive value (PPV), and negative predictive value (NPV) for differentiating the two event types in the 12 study patient in an un-blinded review.
| Patient ID | Accuracy | Sensitivity | Specificity | Precision (PPV) | NPV |
|---|---|---|---|---|---|
| 448 (n = 206) | 0.84 | 0.68 | 0.91 | 0.76 | 0.87 |
| 449 (n = 128) | 0.93 | 0.92 | 0.97 | 0.99 | 0.76 |
| 451 (n = 400) | 0.91 | 0.92 | 0.9 | 0.91 | 0.91 |
| 453 (n = 200) | 0.73 | 0.55 | 0.96 | 0.94 | 0.63 |
| 454 (n = 400) | 0.95 | 0.93 | 0.96 | 0.93 | 0.96 |
| 456 (n = 400) | 0.81 | 0.76 | 0.96 | 0.98 | 0.58 |
| 463 (n = 463) | 0.84 | 0.79 | 0.94 | 0.96 | 0.67 |
| 467 (n = 200) | 0.95 | 0.92 | 0.97 | 0.94 | 0.95 |
| 470 (n = 200) | 0.92 | 0.8 | 0.98 | 0.97 | 0.89 |
| 472 (n = 200) | 0.98 | 0.91 | 1 | 1 | 0.97 |
| 473 (n = 200) | 0.91 | 0.84 | 0.96 | 0.95 | 0.89 |
| 474 (n = 200) | 0.85 | 0.78 | 0.94 | 0.94 | 0.78 |
| All Patients (n = 2934) | 0.89 | 0.82 | 0.95 | 0.94 | 0.84 |