Table 3.
Characteristic | Survivors | Non survivors | P value* | ||||
Absolute frequency Number | Relative frequency % | CI 95 % | Absolute frequency number | Relative frequency % | CI 95 % | ||
Pupillary reflex + a | 19 | 45.24 | 31.23–60.05 | 5 | 11.90 | 5.19–24.99 | <0.005 |
Pupillary reflex –a | 2 | 4.76 | 1.31–15.79 | 16 | 38.10 | 25.00–53.19 | |
Discontinuous EEG patterns | 2 | 4.35 | 1.20–14.54 | 15 | 32.61 | 20.87–47.03 | <0.05 |
Epileptiform EEG | 6 | 13.04 | 6.12–25.66 | 2 | 4.35 | 1.20–14.54 | |
Continuous EEG patterns | 14 | 30.43 | 19.08–44.80 | 7 | 15.22 | 7.57–28.23 | |
Characteristic | Consciousness recovery | No consciousness recovery | P value* | ||||
Absolute frequency number | Relative frequency % | CI 95 % | Absolute frequency number | Relative frequency % | CI 95 % | ||
SL-SSEP + | 15 | 32.61 | 20.87–47.03 | 14 | 30.43 | 19.08–44.80 | <0.05 |
SL-SSEP − | 0 | 0.00 | 0.00–8.38 | 17 | 36.96 | 24.53–51.40 | |
50 mA ML-SSEP + | 15 | 32.61 | 20.87–47.03 | 4 | 8.70 | 3.44–20.33 | <0.001 |
50 mA ML-SSEP − | 0 | 0.00 | 0.00–8.38 | 27 | 58.70 | 44.34–71.72 | |
Characteristic | CPC 1–2 | CPC 3–5 | P value* | ||||
Absolute frequency number | Relative frequency % | CI 95 % | Absolute frequency number | Relative frequency % | CI 95 % | ||
50 mA ML-SSEP + | 12 | 26.09 | 15.60–40.26 | 7 | 15.22 | 7.57–28.23 | <0.005 |
50 mA ML-SSEP − | 0 | 0.00 | 0.00–8.38 | 27 | 58.70 | 44.34–71.72 |
*P value with Holm correction. aMissing data for 4 patients. EEG electroencephalogram, ML-SSEP middle-latency somatosensory evoked potentials, SL-SSEP short-latency somatosensory evoked potentials, CPC cerebral performance category