Sensitivity, specificity, positive predictive value, and negative predictive value for sensory signs
| Focal lesion (n = 46) | Controls (n = 19) | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |||
|---|---|---|---|---|---|---|---|---|
| Pos | Neg | Pos | Neg | |||||
| CI, confidence interval; Neg, test negative; NPV, negative predictive value; Pos, test positive; PPV, positive predictive value. | ||||||||
| Two point discrimination | 9 | 37 | 1 | 18 | 0.20 (0.11 to 0.33) | 0.95 (0.75 to 0.99) | 0.90 (0.55 to 0.99) | 0.33 (0.20 to 0.45) |
| Graphaesthesia | 6 | 40 | 0 | 19 | 0.13 (0.06 to 0.26) | 1.00 (0.83 to 1.00) | 1.00 (0.54 to 1.00) | 0.32 (0.20 to 0.44) |
| Thumb finding | 5 | 41 | 0 | 19 | 0.11 (0.05 to 0.23) | 1.00 (0.83 to 1.00) | 1.00 (0.47 to 1.00) | 0.32 (0.20 to 0.43) |
| Sensory extinction | 5 | 41 | 0 | 19 | 0.11 (0.05 to 0.23) | 1.00 (0.83 to 1.00) | 1.00 (0.47 to 1.00) | 0.32 (0.20 to 0.43) |
| Stereognosis | 5 | 41 | 1 | 18 | 0.11 (0.05 to 0.23) | 0.95 (0.75 to 0.99) | 0.83 (0.35 to 0.99) | 0.31 (0.19 to 0.42) |
| Finger–nose | 4 | 42 | 1 | 18 | 0.09 (0.03 to 0.20) | 0.95 (0.75 to 0.99) | 0.80 (0.28 to 0.99) | 0.30 (0.18 to 0.42) |
| Pinprick | 2 | 44 | 0 | 19 | 0.04 (0.01 to 0.15) | 1.00 (0.83 to 1.00) | 1.00 (0.15 to 1.00) | 0.30 (0.19 to 0.41) |
| Passive joint position | 2 | 44 | 0 | 19 | 0.04 (0.01 to 0.15) | 1.00 (0.83 to 1.00) | 1.00 (0.15 to 1.00) | 0.30 (0.19 to 0.41) |
| Toe finding | 2 | 44 | 1 | 18 | 0.04 (0.01 to 0.15) | 0.95 (0.75 to 0.99) | 0.67 (0.09 to 0.99) | 0.29 (0.18 to 0.40) |
| Light touch | 1 | 45 | 0 | 19 | 0.02 (0.00 to 0.11) | 1.00 (0.83 to 1.00) | 1.00 (0.02 to 1.00) | 0.30 (0.18 to 0.41) |
| Topagnosia | 1 | 45 | 0 | 19 | 0.02 (0.00 to 0.11) | 1.00 (0.83 to 1.00) | 1.00 (0.02 to 1.00) | 0.30 (0.18 to 0.41) |
| Heel–knee | 0 | 46 | 0 | 19 | 0.00 (0.00 to 0.08) | 1.00 (0.83 to 1.00) | – | 0.29 (0.18 to 0.40) |