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PHQ-15 prediction of definite Perley-Guze somatization disorder by medical record review (n = 25)
| Sensitivity | Specificity | PPV | NPV | p | |
|---|---|---|---|---|---|
| PHQ-15 threshold | |||||
| 5 (92% positive) | 100% | 9% | 9% | 100% | .664 |
| 10 (52% positive) | 100% | 52% | 15% | 100% | .480 |
| 15 (16% positive) | 100% | 91% | 50% | 100% | .020 |
PPV positive predictive value, NPV negative predictive value
