Test characteristics of GDS15 for detecting depression and anxiety*
| Outcomes | Cutoff score | Sensitivity (95% CI) | Specificity (CI) | +LR | −LR |
|---|---|---|---|---|---|
| *GDS15=15 item Geriatric Depression Scale. +LR=likelihood ratio for a positive test result; −LR=likelihood ratio for a negative test result. Diagnostic terms defined in glossary; LRs and CI calculated from data in article. Values are weighted by the inverse of the sampling fraction from the first (administration of GDS15) to second (diagnostic interview) stage. | |||||
| Depression | 2/3 | 100% (88 to 100) | 72% (68 to 76) | 3.6 | 0.0 |
| 3/4 | 80% (61 to 92) | 82% (78 to 85) | 4.3 | 0.2 | |
| Anxiety | 2/3 | 79% (54 to 94) | 69% (65 to 73) | 2.6 | 0.3 |
| 3/4 | 68% (43 to 87) | 80% (76 to 83) | 3.4 | 0.4 | |