Table 4 Performance of PHQ-9 at different cut-off points in detecting moderate symptoms of depression, according to BDI-II
From: Validation and calibration of the patient health questionnaire (PHQ-9) in Argentina
PHQ-9 cutoff | Sensitivity % | Specificity % | PPV | NPV | LR+ | LR- | Youden’s Index (J) |
|---|---|---|---|---|---|---|---|
> = 8 | 96.47% | 79.76% | 82.83% | 95.71% | 4.77 | 0.04 | 0.76 |
> = 9 | 95.29% | 80.95% | 83.51% | 94.44% | 5.00 | 0.06 | 0.76 |
> = 10 | 90.59% | 84.52% | 85.56% | 89.87% | 5.85 | 0.11 | 0.75 |
> = 11 | 87.06% | 85.71% | 86.05% | 86.75% | 6.09 | 0.15 | 0.73 |
> = 12 | 87.06% | 88.10% | 88.10% | 87.06% | 7.31 | 0.15 | 0.75 |