| Parameter | Values |
| Cut-off of school education | >25 years |
| CI of cut-off | 19 - 30 |
| Area under curve (SE) | 0.523 |
| CI of area under curve | 0.468 - 0.578 |
| Z statistics | 0.467 |
| Youden index | 0.091 |
| CI of Youden index | 0.051 - 0.111 |
| Sensitivity % | 11.3 |
| Specificity (%) | 79.8 |