Table 1.
Demographic and clinical characteristics
| No suicidal behavior (n = 1863) | Suicidal behavior (n = 92) | Missing | ||
|---|---|---|---|---|
| No suicidal behavior | Suicidal behavior | |||
| Age at study entry | 40.43 ± 12.23 | 36.39 ± 11.63 | ||
| Gender | ||||
| Male | 765 (41.1) | 33 (35.9) | ||
| Female | 1098 (58.9) | 59 (64.1) | ||
| Race | 1 (< 0.1) | |||
| White | 1714 (92.0) | 83 (90.2) | ||
| Non-white | 148 (8.0) | 9 (9.8) | ||
| Hispanic ethnicity | 92 (4.9) | 1 (1.1) | 1 (< 0.1) | |
| SI variability | ||||
| SI score dispersion × 10a | 2.87 ± 1.61 | 3.63 ± 1.56 | ||
| SI intensity | ||||
| SI median score | ||||
| No SI | 1482 (79.5) | 59 (64.1) | ||
| Rare/fleeting | 167 (9.0) | 12 (13.0) | ||
| Several days | 179 (9.6) | 11 (12.0) | ||
| Nearly every day | 35 (1.9) | 10 (10.9) | ||
| SI persistence | ||||
| Proportion of visits with SI × 10a | 3.07 ± 2.34 | 4.07 ± 2.55 | ||
| Affective instability | ||||
| Depressive symptoms | 0.38 ± 0.11 | 0.40 ± 0.09 | ||
| Manic symptoms | 0.22 ± 0.12 | 0.24 ± 0.13 | ||
| Depression severity | 3.91 ± 1.94 | 4.76 ± 1.99 | ||
| Hx of suicide attempt | 716 (38.4) | 62 (67.4) | 59 (3.2) | 1 (1.1) |
| PDQ score | 37.03 ± 16.03 | 40.83 ± 14.66 | 555 (29.8) | 20 (21.7) |
| Alcohol abuse | 197 (10.6) | 19 (20.6) | 117 (6.3) | 7 (7.6) |
| Substance abuse | 125 (6.7) | 15 (16.3) | 120 (6.4) | 7 (7.6) |
SI suicidal ideation, PDQ Personality Disorders Questionnaire
aA one unit change corresponds to a 10% change in variable (SI score dispersion or proportion of visits with SI)