Table 2 Validity coefficients of different SSI cutoffs against K-SADS-PL diagnosed significant suicidal ideation at a mixed adolescent sample of 146 outpatients and 199 community controls
From: Psychometric properties and clinical utility of the Scale for Suicidal Ideation (SSI) in adolescents
SSI cutoff | 0–1 | 1–2 | 2–3 | 3–4 | 4–5 | 5–6 | 6–7 | 7–8 | 8–9 | 9–10 | 10–11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
Sensitivity | 77.1% | 75% | 75% | 75% | 66.7% | 64.6% | 58.3% | 58.3% | 58.3% | 56.3% | 50.0% |
Specificity | 83.0% | 86.5% | 87.6% | 88.9% | 90.0% | 91.6% | 93.0% | 94.6% | 95.9% | 96.2% | 96.8% |
Youden | 0.60 | 0.62 | 0.63 | 0.64 | 0.57 | 0.57 | 0.51 | 0.53 | 0.54 | 0.53 | 0.47 |