Diagnostic characteristics of the GAD-7 scale for generalised anxiety disorder (GAD)*
| GAD scale score cutoff | Sensitivity (95% CI) | Specificity (CI) | +LR | –LR |
|---|---|---|---|---|
| *Diagnostic terms defined in glossary. CIs and LRs calculated from data in article. | ||||
| 8 | 92% (79 to 99) | 76% (73 to 99) | 3.83 | 0.11 |
| 9 | 90% (73 to 98) | 79% (76 to 82) | 4.29 | 0.13 |
| 10 | 89% (73 to 98) | 82% (79 to 84) | 4.94 | 0.13 |
| 11 | 82% (66 to 92) | 85% (83 to 87) | 5.47 | 0.21 |
| 12 | 73% (53 to 87) | 89% (87 to 91) | 6.64 | 0.30 |
| 13 | 66% (30 to 93) | 91% (89 to 93) | 7.33 | 0.37 |
| 14 | 56% (36 to 74) | 92% (90 to 94) | 7.00 | 0.48 |
| 15 | 48% (37 to 59) | 95% (93 to 96) | 9.60 | 0.55 |