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Table 3 Sensitivity, specificity, and likelihood ratios at various cut-off points of the Russian version of the PHQ-9

From: Validity of the PHQ-9 and PHQ-2 to screen for depression in nationwide primary care population in Latvia

PHQ-9 score Sensitivity (%) Specificity (%) Classified (%) LR+ LR−
≥ 6 92.7 64.2 67.8 2.59 0.11
≥ 7 86.8 73.5 75.1 3.28 0.18
≥ 8 79.4 80.1 80.0 4.00 0.26
≥ 9 67.7 85.4 83.2 4.64 0.38
≥ 10 67.7 89.7 87.0 6.59 0.36
≥ 11 58.8 92.0 87.9 7.34 0.45
≥ 12 52.9 93.8 88.8 8.59 0.50
≥ 13 45.6 95.9 89.7 11.10 0.57
≥ 14 35.2 96.3 88.8 9.55 0.67