Table 3 Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy are the two predefined cutoff points of the painDETECT questionnaire for detecting of impairment of the conditioned pain modulation
painDETECT 12 | painDETECT 19 | |
|---|---|---|
Sensitivity %, (95% CI) | 46.6% (33.6 – 60.0) | 21.6% (12.0 – 34.2) |
Specificity %, (95% CI) | 43.1% (36.8 – 49.5) | 78.6% (73.0 – 83.5) |
Positive Likelihood Ratio (95% CI) | 0.8 (0.6 – 1.1) | 1.0 (0.5 – 1.7) |
Negative Likelihood Ratio (95% CI) | 1.2 (0.9 – 1.6) | 1.0 (0.8 – 1.1) |
Impaired CPM Prevalence %, (95% CI) | 19.4% (15.2 – 24.3) | 19.4% (15.2 – 24.3) |
Positive Predictive Value (95% CI) | 16.5% (12.9 – 21.0) | 19.7 (12.5 – 29.5) |
Negative Predictive Value (95% CI) | 76.9% (71.7 – 81.5) | 80.5% (78.1 – 82.7) |
Accuracy (95% CI) | 43.8% (38.2 – 49.5) | 67.5% (61.9 – 72. 7) |