Sensitivity and specificity for categorising optic discs, as normal or glaucomatous, on the basis of total neuroretinal rim area
| Method for defining cut off | Specificity | Sensitivity |
|---|---|---|
| 2.5 percentiles (empirical) | 97.7% | 58.5% |
| 95% prediction intervals (linear regression) | 98.9% | 41.5% |
| 95% prediction intervals (linear regression†) | 98.9% | 60.4% |
| 98% prediction intervals (linear regression†) | 98.9% | 37.7% |
↵Untransformed data. †Log transformed data.