Table 3.
Characteristics of Participants With and Without a Family History (FH) of Suicidal Behaviora
| Characteristic | FH of suicidal behavior (n=23) | No FH of suicidal behavior (n=57) | Analysis | ||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Statistic | df | p Value | |
| Age (years) | 15.7 | 1.3 | 15.5 | 1.4 | t=0.56 | 78 | 0.58 |
| IQ | 97.0 | 12.3 | 98.1 | 15.0 | t=0.31 | 78 | 0.76 |
| n | % | n | % | ||||
|---|---|---|---|---|---|---|---|
| Female | 17 | 73.9 | 43 | 75.4 | χ2=0.02 | 1 | 0.89 |
| Race/ethnicity | χ2=7.6 | 1 | 0.006 | ||||
| White, non-Hispanic | 11 | 47.8 | 45 | 78.9 | |||
| Other race, ethnicity | 12 | 52.2 | 12 | 21.1 | |||
| CBCL DSM-IV-oriented scales | |||||||
| Affective disorders | 17 | 73.9 | 27 | 47.4 | χ2=4.7 | 1 | 0.03 |
| Anxiety disorders | 12 | 52.2 | 16 | 28.1 | χ2=4.2 | 1 | 0.04 |
| Somatic disorders | 11 | 47.8 | 16 | 28.1 | χ2=2.9 | 1 | 0.09 |
| Any behavioral disorder | 18 | 45.0 | 13 | 32.5 | χ2=1.3 | 1 | 0.25 |
| Euthymic participantsb | 13 | 56.5 | 39 | 68.4 | χ2=1.0 | 1 | 0.31 |
| Current medication use | |||||||
| Any psychotropic medication use | 13 | 56.5 | 30 | 52.6 | χ2=0.1 | 1 | 0.75 |
| Current smoker, % yes | 4 | 17.4 | 22 | 38.6 | χ2=3.6 | 1 | 0.07 |
| Current alcohol use, % yes | 6 | 26.1 | 17 | 29.8 | χ2=0.1 | 1 | 0.74 |
| Current substance use,c % yes | 6 | 26.1 | 15 | 26.3 | χ2=0.0 | 1 | 0.98 |
| Sexual abuse in the past year | 2 | 8.7 | 4 | 7.0 | FET | 1.00 | |
a
First-degree relatives.
b
Based on Beck Depression Inventory-FastScreen (Beck, Steer, Brown 2000) total score<4, indicating minimal depressive symptoms.
c
Includes marijuana, cocaine, amphetamine, LSD/mescaline, tranquilizers, heroin/opiates, PCP, or gases/fumes.
CBCL, Child Behavior Checklist; DSM-IV, Diagnostic and Statistical Manual of Mental Disorders, 4th ed.; FET, Fisher's exact test.