Table 1.
Sample Characteristics
| Study 1 | Study 2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Healthy Control1 (n=13) | SI (n=12) | df | ES | Psychiatric Control2 (n=67) | SI (n=74) | df | ES | ||
|
Age
M (SD) |
38.4 (32.0) | 29.0 (11.4) | 23 | d=−0.66 | 45.2 (14.2) | 39.2 (12.3) | 139 | r=−.21* | |
|
Gender
% Female |
53.8 | 66.7 | 1 | Φ=.13 | 16.4 | 40.5 | 1 | Φ=.27** | |
| Race/Ethnicity (%) | 3 | Φ=.33 | 3 | Φ=.17 | |||||
| White | 69.2 | 66.7 | 80.6 | 78.3 | |||||
| Black | 15.4 | 8.3 | 17.9 | 13.5 | |||||
| Hispanic | 0.0 | 8.3 | 0.0 | 4.1 | |||||
| Other | 15.4 | 16.7 | 1.5 | 4.1 | |||||
|
Sexual Orientation % Non-Heterosexual |
0.0 | 41.7 | 1 | Φ=.52* | -- | -- | -- | -- | |
| Education (%) | 3 | Φ=.22 | 4 | Φ=.13 | |||||
| High School or earlier | 15.4 | 8.3 | 28.4 | 25.7 | |||||
| Technical School | 0.0 | 0.0 | 6.0 | 10.8 | |||||
| Some College | 30.8 | 50.0 | 38.8 | 44.6 | |||||
| College graduate | 38.4 | 25.0 | 16.4 | 12.2 | |||||
| Post-grad | 15.4 | 16.7 | 10.4 | 6.7 | |||||
| Marital Status (%) | 3 | Φ=.28 | 3 | Φ=.10 | |||||
| Never Married | 61.5 | 75.0 | 40.3 | 39.2 | |||||
| Married | 15.4 | 16.7 | 16.4 | 10.8 | |||||
| Divorced/Separated | 15.4 | 0.0 | 40.3 | 44.6 | |||||
| Other | 7.7 | 8.3 | 3.0 | 5.4 | |||||
|
Depression
M (SD) |
1.2 (1.2) | 10.6 (3.8) | 23 | d=3.51*** | 13.3 (6.4) | 20.2 (6.0) | 138 | r=.43*** | |
| Verbal Fluency | 24.2 (5.6) | 22.4 (4.6) | 20 | d=0.20 | -- | -- | -- | -- | |
Note. SI=Suicidal ideation (past year history); Healthy Control
1
=Nonpsychiatric comparison group featuring no lifetime history of SI and attempt. Psychiatric Control
2
=Psychiatric comparison group featuring no past year history of SI and attempt. Depression was assessed via QIDS in Study 1 and via PHQ-9 in Study 2.
*
p < .05.
**
p < .01.
***
p < .001.