Table 3. Comparison of correctly classified and misclassified ALS patients and controls in the training sample.
| ALS Patients | |||
| True Positive | False Negative | p-values | |
| N | 50 | 10 | |
| Male sex, n | 32 | 7 | P = .72 |
| Age, y (mean, SD) | 60.66 (10.46) | 56.04 (12.69) | P = .30 |
| Handedness (right/left) | 44/ 6 | 8/ 2 | P = .86 |
| Disease duration from symptom onset until date of scan, m (mean, SD) | 25.72 (16.07) | 28.2 (33.01) | P = .82 |
| Type of onset, (bulbar/ spinal/respiratory) | 18/ 31/ 1 | 1/ 9 | P = .23 |
| ALS-FRS-R (mean, SD) | 37.46 (6.57) | 42 (4.06) | P < .01 |
| Probability of ALS (mean, SD) | 61.16 (8.44) | 47.63 (1.79) | P < .01 |
| Healthy controls | |||
| True Negative | False Positive | p-values | |
| N | 26 | 24 | |
| Male sex, n | 16 | 8 | P = .08 |
| Age, y (mean, SD) | 60.34 (8.48) | 60.99 (9.33) | P = .80 |
| Handedness (right/left) | 25/ 1 | 22/ 2 | P = .94 |
| Probability of ALS (mean, SD) | 56.08 (4.39) | 43.08 (5.07) | P < .01 |