Table 2.
Cox Proportional Hazards Regression Analyses of Baseline Schedule for Nonadaptive and Adaptive Personality–Self-Harm (SNAP-SH) Scores Predicting Suicide Attempt Status Over 8-Year Follow-Up
| Model | B | SE(B) | χ2 | P | HR | 95% CI for OR |
|---|---|---|---|---|---|---|
| Model 1 | ||||||
| SNAP-SH baseline | 0.25 | 0.03 | 101.73 | <.001 | 1.28 | 1.22–1.35 |
| Model 2 | ||||||
| SNAP-SH proximal | 0.23 | 0.02 | 93.07 | <.001 | 1.26 | 1.21–1.33 |
| Model 3 | ||||||
| SNAP-SH baseline | 0.18 | 0.03 | 44.31 | <.001 | 1.20 | 1.14–1.27 |
| BPD baseline | 1.14 | 0.23 | 25.61 | <.001 | 3.12 | 2.01–4.84 |
| Model 4 | ||||||
| SNAP-SH baseline | 0.25 | 0.03 | 101.34 | <.001 | 1.28 | 1.22–1.35 |
| MDD baseline | 0.02 | 0.21 | 0.01 | .93 | 1.02 | 0.67–1.54 |
| Model 5 | ||||||
| SNAP-SH baseline | 0.24 | 0.03 | 90.68 | <.001 | 1.27 | 1.21–1.33 |
| SUD baseline | 0.38 | 0.19 | 3.92 | .05 | 1.47 | 1.00–2.14 |
| Model 6 | ||||||
| SNAP-SH baseline | 0.19 | 0.05 | 18.41 | <.001 | 1.21 | 1.11–1.33 |
| BPD baseline | 1.30 | 0.62 | 4.45 | .04 | 3.67 | 1.10–12.23 |
| SNAP-SH*BPDa (baseline) | −0.02 | 0.06 | 0.08 | .78 | 0.98 | 0.88–1.10 |
| Model 7 | ||||||
| SNAP-SH | 0.25 | 0.03 | 101.73 | <.001 | 1.28 | 1.22–1.35 |
| SNAP-NT | 0.02 | 0.02 | 1.06 | .30 | 1.02 | 0.98–1.06 |
| Model 8 | ||||||
| Low self-esteem | 0.23 | 0.04 | 27.95 | <.001 | 1.26 | 1.15–1.37 |
| Model 9 | ||||||
| Suicide proneness | 0.44 | 0.04 | 129.24 | <.001 | 1.54 | 1.43–1.67 |
a
Interaction between SNAP-SH and BPD.
Abbreviations: BPD=borderline personality disorder, HR = hazard ratio, MDD = major depressive disorder, OR = odds ratio, SNAP-NT = Schedule for Nonadaptive and Adaptive Personality-negative temperament, SUD = substance use disorder.