Using the GHQ-12 to screen for mental health problems among primary care patients: psychometrics and practical considerations

Table 8 Performance and ROC area of the GHQ-12 (bimodal scoring)

ICD-10 diagnoses	Threshold	SE	SP	PPV	NPV	AUC
Mood disorders	1/2	0.774	0.433	0.104	0.957	0.702
Mood disorders	2/3	0.717	0.634	0.143	0.963
Mixed anxiety and depression	1/2	0.902	0.474	0.234	0.965	0.725
Mixed anxiety and depression	2/3	0.686	0.659	0.263	0.922
Anxiety disorders	1/2	0.805	0.446	0.157	0.947	0.661
Anxiety disorders	2/3	0.597	0.624	0.172	0.924
Any diagnosis	1/2	0.824	0.641	0.679	0.789	0.787
Any diagnosis	2/3	0.599	0.798	0.732	0.683

SE Sensitivity, SP Specificity, PPV Positive Predictive Value, NPV Negative Predictive Value, AUC Area Under Curve

ISSN: 1752-4458