TABLE 1.
Comparison of Columbia Suicide Screen (CSS) Algorithms and Diagnostic Outcome Criteria for Screening High School Students for High Suicide Risk and Any Significant Clinical Criteria DISC 2.3, New York, NY, 1991–1994
| High Risk for Suicide Criteriona |
Clinical Criterionbc |
|||||||
| CSS Algorithm | No. of Students | Sensitvity, Weighted Proportion (95% CI) | Specificity, Weighted Proportion (95% CI) | PPV, Weighted Proportion (95% CI) | No. of Students | Sensitvity, Weighted Proportion (95% CI) | Specificity, Weighted Proportion (95% CI) | PPV, Weighted Proportion (95% CI) |
| High threshold (algorithm A), n = 280de | 78 | 92.0 (79.1, 97.5) | 78.2 (74.5, 81.4) | 25.0 (18.8, 32.4) | 197 | 68.8 (61.4, 75.8) | 88.4 (85.0, 91.1) | 68.6 (60.9, 75.4) |
| Low threshold (algorithm B), n = 355ef | 81 | 96.1 (84.5, 99.4) | 61.0 (56.9, 65.0) | 16.3 (12.2, 21.4) | 216 | 81.5 (74.7, 86.9) | 70.9 (66.5, 75.0) | 50.7 (44.6, 56.8) |
| Any lifetime attempt or recent ideation (algorithm C), n = 219e | 75 | 89.1 (75.6, 95.9) | 87.1 (84.0, 89.7) | 35.7 (27.1, 45.2) | 178 | 58.1 (50.0, 65.5) | 95.6 (93.2, 97.2) | 82.6 (74.1, 88.8) |
| High threshold or ask for help (algorithm D), n = 344e | 83 | 99.2 (88.9, 100.0) | 72.1 (68.2, 75.6) | 22.4 (16.9, 28.9) | 212 | 76.5 (69.0, 82.7) | 82.5 (78.5, 85.8) | 61.2 (54.1, 68.0) |
Note. DISC = Diagnostic Interview Schedule for Children; PPV = positive predictive value. The sample size of students who completed the DISC 2.3 Evaluation Outcome Criteria was n = 641. The sample was weighted to represent the original 1729 screened students.
The sample size was n = 85. There were 20 male students and 65 female students.
The sample size was n = 254. There were 91 male students and 163 female students.
Any suicidal ideation (past 6 months), or lifetime suicide attempt, or current (past 6 months) Diagnostic and Statistical Manual of Mental Disorders, Revised Third Edition, mood, anxiety, or substance use disorder.
Any recent ideation or lifetime attempt, or 4 or more emotional items rated as a “medium,” “bad” or “very bad” problem.
This number represents the unweighted frequency of students who met criteria for this algorithm and who completed the DISC interview. Unweighted frequencies and weighted proportions are presented.
Any recent ideation or lifetime attempt, or 3 or more emotional items rated as a “medium,” “bad” or “very bad” problem.