Independent predictors for structural causes of coma; results are % (95% confidence interval)
| Sensitivity | Specificity | Positive predictive value | Negative predictive value | Likelihood ratio | |
|---|---|---|---|---|---|
| Absence of the light reflex | 83 (76 to 90) | 77 (69 to 85) | 70 (62 to 79) | 87 (81 to 93) | 3.56 |
| Anisocoria | 39 (30 to 48) | 96 (92 to 99) | 86 (79 to 92) | 70 (62 to 79) | 9 |