Table 2.
Accuracy of index tests (single and in combination) for prediction of poor (CPC 3-4-5) outcome at 6 months.
| Index test | TP | FP | TN | FN | Sensitivity % (95%CI) | False positive rate % (95%CI) |
|---|---|---|---|---|---|---|
| Single test prediction | ||||||
| Grade 2 SEPs | 128 | 0 | 88 | 130 | 49.6 (43.3–55.8) | 0 (0–4) |
| GM/WM ratio < 1.21 on brain CT | 109 | 0 | 88 | 149 | 42.2 (36.1–48.5) | 0 (0–4) |
| Malignant EEG | 77 | 0 | 88 | 181 | 29.8 (24.3–35.8) | 0 (0–4) |
| Combination of two tests | ||||||
| Grade 2 SEPs or GW/WM ratio < 1.21 | 157 | 0 | 88 | 101 | 60.8 (54.6–66.8) | 0 (0–4) |
| Malignant EEG or GW/WM ratio < 1.21 | 116 | 0 | 88 | 142 | 44.9 (38.7–51.2) | 0 (0–4) |
| Grade 2 SEPs or Malignant EEG | 129 | 0 | 88 | 129 | 50.0 (43.7–56.2) | 0 (0–4) |
| Combination of three tests | ||||||
| At least one test predicting poor outcome | 158 | 0 | 88 | 100 | 61.2 (55.0–67.2) | 0 (0–4) |
CI: Confidence Interval; CT: computed tomography; EEG: Electroencephalogram; GW/WM: Gray Matter/White Matter; SEPs: Somatosensory Evoked Potentials.
FN, false negative; FP, false positive; TN, true negative; TP, true positive.