Sensitivity, specificity, and positive and negative predictive values of the MDQ
| Cut-off | Sensitivity | 95% CI | Specificity | 95% CI | +PV | 95% CI | −PV | 95% CI |
|---|---|---|---|---|---|---|---|---|
| ≥0 | 100.00 | 79.4 to 100.0 | 0.00 | 0.0 to 1.8 | 7.2 | 4.2 to 11.5 | 100 | 0.99 to 1.00 |
| ≥1 | 100.00 | 79.4 to 100.0 | 0.00 | 0.0 to 1.8 | 7.2 | 4.2 to 11.5 | 100 | 0.99 to 1.00 |
| ≥2 | 75.00 | 47.6 to 92.7 | 53.66 | 46.6 to 60.6 | 11.2 | 5.9 to 18.8 | 96.5 | 91.3 to 99.0 |
| ≥3 | 75.00 | 47.6 to 92.7 | 54.15 | 47.1 to 61.1 | 11.3 | 6.0 to 18.9 | 96.5 | 91.3 to 99.0 |
| ≥4 | 75.00 | 47.6 to 92.7 | 55.12 | 48.0 to 62.1 | 11.5 | 6.1 to 19.3 | 96.6 | 91.5 to 99.1 |
| ≥5 | 75.00 | 47.6 to 92.7 | 59.02 | 52.0 to 65.8 | 12.5 | 6.6 to 20.8 | 96.8 | 92.0 to 99.1 |
| ≥6 | 75.00 | 47.6 to 92.7 | 63.90 | 56.9 to 70.5 | 14.0 | 7.4 to 23.1 | 97.0 | 92.6 to 99.2 |
| ≥7 | 68.75 | 41.3 to 89.0 | 67.80 | 60.9 to 74.1 | 14.3 | 7.4 to 24.1 | 96.5 | 92.1 to 98.9 |
| ≥8 | 68.75 | 41.3 to 89.0 | 72.20 | 65.5 to 78.2 | 16.2 | 8.4 to 27.1 | 96.7 | 92.5 to 98.9 |
| ≥9 | 62.50 | 35.4 to 84.8 | 77.07 | 70.7 to 82.6 | 17.5 | 8.7 to 29.9 | 96.3 | 92.2 to 98.6 |
| ≥10 | 62.50 | 35.4 to 84.8 | 85.85 | 80.3 to 90.3 | 25.6 | 13.0 to 42.1 | 96.7 | 93.0 to 98.8 |
| ≥11 | 56.25 | 29.9 to 80.2 | 92.20 | 87.6 to 95.5 | 36.0 | 18.0 to 57.5 | 96.4 | 92.8 to 98.6 |
| ≥12 | 37.50 | 15.2 to 64.6 | 96.10 | 92.5 to 98.3 | 42.9 | 17.7 to 71.1 | 95.2 | 91.3 to 97.7 |
| =13 | 25.00 | 7.3 to 52.4 | 97.56 | 94.4 to 99.2 | 44.4 | 13.7 to 78.8 | 94.3 | 90.3 to 97.0 |
MDQ = Mood Disorder Questionnaire. +PV = positive predictive value. −PV = negative predictive value.