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Table 2 Sensitivity, specificity, and likelihood ratios at various cut-off points of the Latvian 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 82.3 69.6 70.7 2.71 0.25
≥ 7 77.2 77.3 77.3 3.40 0.29
≥ 8 74.7 83.7 82.9 4.57 0.30
≥ 9 70.9 87.9 86.4 5.84 0.33
≥ 10 60.8 91.1 88.5 6.84 0.43
≥ 11 55.7 94.1 90.8 9.47 0.47
≥ 12 49.4 95.8 91.8 11.75 0.53
≥ 13 44.3 97.4 92.8 16.78 0.57
≥ 14 36.7 98.2 92.9 20.39 0.64