Table 2.
Diagnostic characteristics for the CRAFFT test (cut point score ≥2) in screening for substance abuse among adolescents*
| Substance use category | Sensitivity (95% CI) | Specificity (CI) | +LR | −LR |
|---|---|---|---|---|
| *Diagnostic terms defined in glossary. Likelihood ratios (LRs) were provided by the author. | ||||
| Any problem (problem use, abuse, or dependence) | 76% (68 to 83) | 94% (92 to 96) | 12.97 | 0.26 |
| Any diagnosis (abuse or dependence) | 80% (72 to 89) | 86% (83 to 89) | 5.85 | 0.23 |
| Dependence | 92% (82 to 100) | 80% (77 to 83) | 4.65 | 0.10 |
