Table 2

Operating Characteristics of Various PHQ-9 Cut Points for Diagnosing Major Depression as Determined by the DISC-IV

PHQ-9 ScoreSensitivitySpecificityPositive Predictive ValueNegative Predictive ValueLikelihood Ratio
≥6100.050.48.3100.02.01
≥794.757.09.099.62.20
≥889.563.810.099.32.47
≥989.567.611.099.32.76
≥1089.572.112.699.33.21
≥1189.577.515.299.43.98
≥1279.081.316.098.94.23
≥1368.485.617.698.44.75
  • Area under the ROC: 88% (95% confidence interval: 82–94).