Table 2.
Relative importance of each predictor for antibodies (unsupervised method)
| Variables | Clinical features only | Clinical features + demographic characteristics | ||
|---|---|---|---|---|
| Mean decrease accuracy | Variable importance (%) | Mean decrease accuracy | Variable importance (%) | |
| Age at examination | 204.6 | 100.0 | ||
| Disease duration | 155.3 | 75.9 | ||
| Gender | 59.3 | 29.0 | ||
| Dystonia | 119.7 | 56.4 | 75.5 | 36.9 |
| SPS spectrum | 122.0 | 57.4 | 117.6 | 57.5 |
| Psychiatric | 212.5 | 100.0 | 151.4 | 74.0 |
| Chorea/choreoathetosis | 131.7 | 61.9 | 116.8 | 57.1 |
| Tremors | 94.0 | 44.2 | 82.3 | 40.2 |
| Ataxia | 113.2 | 53.2 | 89.2 | 43.6 |
| Dyskinesia | 127.4 | 60.0 | 83.6 | 40.9 |
| Opsoclonus | 117.0 | 55.1 | 107.9 | 52.7 |
| Parkinsonism | 35.5 | 16.7 | 42.26 | 20.6 |
| Autonomic | 68.9 | 32.4 | 63.8 | 31.2 |
| Cognitive | 100.5 | 47.3 | 100.6 | 49.2 |
| Seizure | 130.7 | 61.5 | 103.2 | 50.4 |
| Consciousness | 62.3 | 29.3 | 55.2 | 27.0 |
| Dysphagia | 57.8 | 27.2 | 36.4 | 17.8 |
| Sensory | 61.5 | 28.9 | 57.6 | 28.1 |
| Startle reaction | 66.6 | 31.3 | 45.7 | 22.3 |
| Myoclonus/jerking | 146.2 | 68.8 | 111.2 | 54.3 |
| Stereotypies | 39.7 | 18.7 | 19.2 | 9.4 |
| Myorhythmia | 3.4 | 1.6 | 2.4 | 1.2 |
| Opisthotonus | 6.0 | 2.8 | 1.6 | 0.8 |