Prognostication of coma outcome based on power spectra on Days 1 and 2 after coma onset. Outcome prediction based on normalized spectral power in arbitrary units for Days 1 and 2. Blue dots show patients in the training set for one representative fold with FO; N = 36, pink dots show patients in the training with UO; N = 37 and black dots show patients belonging in the test set for one representative fold (FO: N = 9; UO: N = 9). The dashed line indicates the threshold for outcome prediction; values above the threshold should predict FO. For Day 1, in the subset of patients recorded on both days, we correctly predicted FO in 18 patients without false positives. For Day 2, applying the same threshold as Day 1, we found no significant outcome prediction