Table 5:
Result of the quality control study on PHQ9 accuracy. Gold standard diagnosis of DSM-IV current major depressive disorder by ANTAS-SCID cut-off 7/8 (left column) and 9/10 (right column).
Cut-off 7/8
Cut-off 9/10
Sensitivity
72.7%
87.5%
Specificity
94.9%
97.1%
Predictive Positive Value
80%
87.5%
Predictive Negative Value
92.5%
80.9%