Example data for ROC curve: CK-MB mass eight hours from admission
| A Partial sample data set |
| MB mass (μg/l) 8 h from admission | Myocardial infarction |
|---|---|
| 2.0 | 0 |
| 2.0 | 0 |
| 3.4 | 0 |
| 3.5 | 0 |
| 3.5 | 0 |
| 3.6 | 0 |
| 14.5 | 0 |
| 14.7 | 0 |
| 15.8 | 0 |
| 15.8 | 0 |
| 16.1 | 0 |
| 17.1 | 0 |
| 2.3 | 1 |
| 5.35 | 1 |
| 5.5 | 1 |
| 12.4 | 1 |
| 12.6 | 1 |
| 15.5 | 1 |
| 15.9 | 1 |
| 16.4 | 1 |
| 17.1 | 1 |
| 30.1 | 1 |
| 30.6 | 1 |
| 30.7 | 1 |
| 32.0 | 1 |
| 32.4 | 1 |
| 33.0 | 1 |
| 239.0 | 1 |
| 337.0 | 1 |
| 0 = no AMI; 1 = AMI. |
| B Partial dataset from ROC curve calculation |
| Cut off value | Sensitivity | Specificity | TP | FN | FP | TN |
|---|---|---|---|---|---|---|
| 0.3 | 1.00 | 0.01 | 112 | 0 | 151 | 1 |
| 1 | 1.00 | 0.04 | 112 | 0 | 146 | 6 |
| 2 | 1.00 | 0.23 | 112 | 0 | 117 | 35 |
| 4 | 0.99 | 0.54 | 111 | 1 | 70 | 82 |
| 5.5 | 0.97 | 0.68 | 109 | 3 | 49 | 103 |
| 8 | 0.97 | 0.78 | 109 | 3 | 34 | 118 |
| 12 | 0.97 | 0.84 | 109 | 3 | 24 | 128 |
| 21 | 0.88 | 0.91 | 99 | 13 | 13 | 139 |
| 33 | 0.75 | 0.96 | 84 | 28 | 6 | 146 |
| 42 | 0.64 | 0.97 | 72 | 40 | 4 | 148 |
| 60 | 0.53 | 0.99 | 59 | 53 | 2 | 150 |
| 82 | 0.39 | 1.00 | 44 | 68 | 0 | 152 |
| 124 | 0.26 | 1.00 | 29 | 83 | 0 | 152 |
| 220 | 0.10 | 1.00 | 11 | 101 | 0 | 152 |