Sensitivity (sens), specificity (spec), and likelihood ratios (LR) at various levels of the predictor variables in the validation dataset
| Total (n = 128) | TBM (n = 66) | Non- TBM (n = 62) | Sens | Spec | LR +ve | |
|---|---|---|---|---|---|---|
| One or more predictor variables present | 100 | 65 | 35 | 98.4 | 43.5 | 1.7 |
| Two or more predictor variables present | 59 | 51 | 8 | 77.2 | 87.0 | 5.9 |
| Three or more predictor variables present | 37 | 36 | 1 | 54.5 | 98.3 | 30.0 |
TBM, tuberculous meningitis.