Table 1.
Diagnostic accuracy values.
| MSA | MSA-P | MSA-C | |
|---|---|---|---|
| N | 139 | 87 | 52 |
| S | 82.46% (75.04–89.88) | 97.26% (92.83–100.00) | 56.10% (39.69–72.51) |
| E | 40% (18.80–61.20) | 21.43% (0.00–46.49) | 63.64% (30.66–96.61) |
| PPV | 86.24% (79.31–93.16) | 86.59% (78.60–94.57) | 85.19% (69.93–100.00) |
| PNV | 33.33% (14.80–51.87) | 60.00% (7.06–100.00) | 28% (8.40–47.60) |
| FP | 60% | 79% | 36% |
| FN | 18% | 3% | 44% |
| Accuracy | 10% | 85% | 58% |
MSA: Multiple System Atrophy; MSA-P: Multiple System Atrophy Parkinsonian Type; MSA-C: Multiple System Atrophy Cerebellar Type; N: Number of patients; S: Sensitivity; E: Specificity; PPV: Positive predictive value; PNV: Negative predictive value; FP: False positives; FN: False negatives. The 95% confidence interval is shown in parentheses.