Sensitivity, specificity, positive predictive value and negative predictive value of cranial nerve 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. | ||||||||
| Visual field defect | 10 | 36 | 1 | 18 | 0.22 (0.12 to 0.36) | 0.95 (0.75 to 0.99) | 0.91 (0.58 to 0.99) | 0.33 (0.21 to 0.46) |
| Facial weakness | 8 | 38 | 1 | 18 | 0.17 (0.09 to 0.31) | 0.95 (0.75 to 0.99) | 0.89 (0.51 to 0.99) | 0.32 (0.20 to 0.44) |
| Optokinetic nystagmus | 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) |