Table 4.
Relative importance of each predictor for antibodies (supervised method)
| Variables | Clinical features only | Clinical features + demographic characteristics | ||
|---|---|---|---|---|
| Mean decrease accuracy | Variable importance (%) | Mean decrease accuracy | Variable importance (%) | |
| Age at examination | 281.2 | 100.0 | ||
| Dystonia | 154.0 | 60.8 | 82.1 | 29.2 |
| SPS symptoms | 217.7 | 86.0 | 163.5 | 58.1 |
| Psychiatric | 253.2 | 100.0 | 183.1 | 65.1 |
| Disease duration | 206.0 | 73.2 | ||
| Ataxia | 193.5 | 76.4 | 103.9 | 36.9 |
| Chorea/choreoathetosis | 154.8 | 61.1 | 150.2 | 53.4 |
| Dyskinesia | 159.7 | 63.0 | 89.6 | 31.9 |
| Parkinsonism | 64.6 | 25.5 | 64.7 | 23.0 |
| Gender | 77.2 | 27.4 | ||
| Opsoclonus | 152.1 | 60.0 | 141.6 | 50.3 |
| Myoclonus/jerking | 215.5 | 85.1 | 152.8 | 54.3 |
| Total tremors | 123.8 | 48.9 | 110.6 | 39.3 |