Table 5 Performance of PHQ-9 at different cut-off points in detecting severe 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) |
|---|---|---|---|---|---|---|---|
> = 14 | 86.27% | 84.75% | 70.97% | 93.46% | 5.66 | 0.16 | 0.71 |
> = 15 | 82.35% | 88.98% | 76.36% | 92.11% | 7.48 | 0.20 | 0.71 |
> = 16 | 72.55% | 93.22% | 82.22% | 88.71% | 10.70 | 0.30 | 0.66 |
> = 17 | 58.82% | 93.22% | 78.95% | 83.97% | 8.68 | 0.44 | 0.52 |
> = 18 | 49.02% | 94.92% | 80.65% | 81.16% | 9.64 | 0.54 | 0.44 |