Table 2.
Statistically significant variables
| Variable | Significant outcome | P value | Sensitivity % | CI 95 % | Specificity % | CI 95 % | PPV % | CI 95 % | NPV % | CI 95 % |
|---|---|---|---|---|---|---|---|---|---|---|
| Pupillary reflex | Survival | <0.005 | 76.19 | 52.83–91.69 | 90.48 | 69.58–98.55 | 88.89 | 65.25–98.30 | 79.17 | 57.84–92.79 |
| Continuous EEG patterns | Survival | <0.05 | 70.83 | 48.91–87.33 | 63.64 | 40.67–82.76 | 68.00 | 46.50–85.01 | 66.67 | 43.04–85.35 |
| Epileptiform EEG pattern | Survival | <0.05 | 91.67 | 72.96–98.73 | 27.27 | 10.80–50.22 | 57.89 | 40.83–73.68 | 75.00 | 35.05–96.07 |
| Discontinuous EEG patterns | Survival | <0.05 | 62.50 | 40.60–81.16 | 90.91 | 70.80–98.62 | 88.24 | 63.52–98.20 | 68.97 | 49.17–84.68 |
| ML-SSEP at 50 Ma | Consciousness recovery | <0.001 | 87.10 | 70.15–96.29 | 100.00 | 78.03–100.00 | 100.00 | 87.11–100.00 | 78.95 | 54.43–93.82 |
| SL-SSEP | Consciousness recovery | <0.05 | 54.84 | 36.04–72.67 | 100.00 | 78.03–100.00 | 100.00 | 80.33–100.00 | 51.72 | 32.54–70.54 |
| ML-SSEP at 50 Ma | 6 months CPC | <0.005 | 79.41 | 62.09–91.26 | 100.00 | 73.35–100.00 | 100.00 | 87.11–100.00 | 63.16 | 38.38–83.65 |
PPV positive predictive value, NPV negative predictive value, EEG electroencephalogram, ML-SSEP middle-latency somatosensory evoked potentials, SL-SSEP short-latency somatosensory evoked potentials, CPC cerebral performance category