Table 1.
Sociodemographic and clinical characteristics of suicide attempters with and without a family history of suicidal behavior
| Sociodemographic and clinical characteristics | With family history (n = 33) |
Without family history (n = 144) |
t-value or chi-square |
d.f. | P-value |
|---|---|---|---|---|---|
| Age, mean (±SD) (years) | 32.88 (11.1) | 35.80 (11.7) | 1.305 | 174 | 0.194 |
| Years of education, mean (±SD) | 13.03 (6.3) | 13.60 (5.3) | 0.536 | 174 | 0.591 |
| Severity of depression (Beck Depression Inventory), mean (±SD) | 29.87 (10.6) | 29.03 (12.0) | −0.356 | 150 | 0.723 |
| Number of prior episodes of major depression, mean (±SD) | 3.76 (3.0) | 3.18 (3.0) | −0.928 | 133 | 0.355 |
| Age of onset of major depression, mean (±SD) (years) | 22.41 (10.6) | 22.69 (12.4) | 0.121 | 170 | 0.904 |
| Number of prior suicide attempts, mean (±SD) | 2.61 (1.6) | 2.42 (1.8) | −0.538 | 175 | 0.592 |
| Age at first attempt, mean (±SD) (years) | 21.47 (17.6) | 22.69 (17.0) | 0.365 | 172 | 0.715 |
| Aggression, mean (±SD) | 19.39 (5.4) | 20.10 (6.1) | 0.610 | 164 | 0.543 |
| Impulsivity, mean (±SD) | 54.93 (13.4) | 50.99 (19.3) | −1.002 | 135 | 0.318 |
| Life stressors, mean (±SD) | 2.72 (0.8) | 2.64 (0.9) | −0.443 | 150 | 0.658 |
| Current suicidal ideation, mean (±SD) | 7.09 (7.2) | 9.79 (9.1) | 1.556 | 164 | 0.122 |
| Reasons for living, mean (±SD) | 140.95 (46.7) | 129.27 (38.6) | 1.097 | 126 | 0.275 |
| Sex, % (N) | |||||
| Female | 60.6 (20) | 66.7 (96) | 0.437 | 1 | 0.509 |
| Male | 39.4 (13) | 33.3 (48) | |||
| Employment status, % (N) | |||||
| Employed | 54.6 (18) | 62.2 (89) | 0.666 | 1 | 0.415 |
| Unemployed | 45.4 (15) | 37.8 (54) | |||
| Marital status, % (N) | |||||
| Married | 60.6 (20) | 52.5 (75) | 0.718 | 1 | 0.397 |
| Other | 39.4 (13) | 47.5 (68) | |||
| Ethnicity, % (N) | |||||
| White | 90.9 (30) | 90.2 (129) | 0.015 | 1 | 0.902 |
| Non-White | 9.1 (3) | 9.8 (14) |