Table 2.
Performance statistics for discriminant functions.
| Model variables | Prior group probability | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) |
|---|---|---|---|---|---|
| Citrulline and methionine | Equal | 100.00 | 100.00 | 100.00 | 100.00 |
| Citrulline and methionine | Observed | 100.00 | 75.00 | 87.50 | 100.00 |
| Citrulline and citrulline × age | Equal | 85.71 | 100.00 | 100.00 | 80.00 |
| Citrulline and citrulline × age | Observed | 100.00 | 100.00 | 100.00 | 100.00 |
| Citrulline/methionine ratio | Equal | 85.71 | 100.00 | 100.00 | 80.00 |
| Citrulline/methionine ratio | Observed | 100.00 | 75.00 | 87.50 | 100.00 |