Research Article
Brief Psychiatric Screening Questionnaire in Parkinson’s Disease
Table 3
Performance of BPQ groups assessed by area under the curve (AUC) and sensitivity, specificity, and efficiency coefficient of optimal cutoff scores.
| Targets | AUC | Optimal cutoff scores | Sensitivity (%) | Specificity (%) | Efficiency coefficient |
| GDS ≥ 5 | 0.896 (<0.0001) | BPQ-Depression > 6 | 75 | 90 | 0.88 | Highest decile of STAI-Y2 | 0.979 (<0.0001) | BPQ-Anxiety > 17 | 100 | 93 | 0.91 | Highest decile of apathy scale | 0.736 (0.015) | BPQ-Apathy > 7 | 70 | 65 | 0.51 |
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