Table 4.
Accuracy of multivariate support vector machine discrimination analysis on FCS and univariate receiver operating characteristic analysis on demographic and clinical variables
| Input for discrimination analysis | Accuracy, % |
||
|---|---|---|---|
| 18 Nonawakened vs 14 awakened | 13 Nonawakened vs 14 awakened | 9 Nonawakened vs 14 awakened | |
| SVM (FCS) | |||
| LOOCV | 81.25 | 81.48 | 82.61 |
| LTOCV | 75.61 | 77.35 | 79.25 |
| ROC | |||
| GCS | 50.00 | 51.85 | 78.26 |
| CRS-R | 59.38 | 62.96 | 69.57 |
| Time prior to fMRI after injury (days) | 68.75 | 70.37 | 69.57 |
| Gender | 53.12 | 55.56 | 65.22 |
| Age, years | 81.25 | 77.78 | 56.52 |
ROC, Receiver operating characteristic; SVM, support vector machine. Accuracy >75% is labeled in bold.