Table 3: Receiver operating characteristic (ROC) analysis of the links between PQ-B and being a carrier of high at-risk mental states (HARMS) according to GHQ-12 and SPQ thresholds.

n = 243 PQ-B Frequency PQ-B Distress
OR (95%CI) OR (95%CI)
PQ-B 1.47 (1.25 – 1.81); p<0.0001 1.11 (1.06 – 1.17); p<0.0001
True positive 9 9
False negative 1 1
Sensitivity 90.0% 90.0%
Specificity 74.7% 80.2%
Positive predictive value 13.2% 16.3%
Negative predictive value 99.4% 99.4%
Balanced accuracy 82.3% 85.1%
Diagnostic likelihood ratio 3.5 4.5
Fit of the model
Likelihood ratio test LR χ2=24.62; df=1; p<0.0001 LR χ2=26.59; df=1; p<0.0001
AUC (95%CI) 0.893 (0.815 – 0.971) 0.920 (0.857 – 0.983)
McFadden’s pseudo-R2 0.295 0.318
McFadden’s adjusted pseudo-R2 0.223 0.246
Le Cessie-Van Houwelingen-Copas-Hosmer test z=-0.09, p=0.927 z=1.15, p=0.250
Tukey-Pregibon test: Hat2 z=1.47, p=0.142 z=-0.20, p=0.840