Table 2.
Clinical characteristics of bipolar individuals with and without a history of suicide attempt
| Total bipolar individuals (N = 139) |
Bipolar without a history of suicide attempts (N = 80) |
Bipolar with a history of suicide attempts (N = 55) |
Statistical test of the difference between bipolar with and without a history of suicide attempt (df) |
Significance (2-sided) |
|
|---|---|---|---|---|---|
| History of substance use disorder N (%) | 78 (56.1%) | 41 (51.3%) | 36 (65.5%) | χ2 = 2.684 (1) | 0.101 |
| Comorbid anxiety diagnosis N (%) | 58 (41.7%) | 31 (38.8%) | 27 (49.1%) | χ2 = 1.422 (1) | 0.233 |
| Male N (%) | 48 (34.5%) | 34 (42.5%) | 11 (20.0%) | χ2 = 8.562 (3) | 0.036a |
| Female non-menopausal N (%) | 63 (45.3%) | 30 (37.5%) | 33 (60.0%) | ||
| Female menopausal N (%) | 24 (17.3%) | 14 (17.5%) | 10 (18.2%) | ||
| Female unknown status N (%) | 4 (2.9%) | 2 (2.5%) | 1 (1.2%) | ||
| Euthymic mood state N (%) | 55 (39.6%) | 35 (43.8%) | 19 (34.5%) | χ2 = 1.769 (3) | 0.622 |
| Depressed mood state N (%) | 44 (31.7%) | 26 (32.5%) | 18 (32.7%) | ||
| Hypomanic/mixed mood state N (%) | 9 (6.5%) | 4 (5%) | 3 (5.5%) | ||
| Unknown mood state N (%) | 31 (22.3%) | 15 (18.8%) | 15 (27.3%) | ||
| Current smoker N (%) | 38 (27.3%) | 15 (18.8%) | 22 (40.0%) | χ2 = 7.397 (1) | 0.007a |
| Positive history of mixed episodes N (%) | 41 (29.5%) | 20 (25.0%) | 21 (38.2%) | χ2 = 8.583 (2) | 0.014a |
| Unclear history of mixed episodes N (%) | 7 (5.0%) | 1 (1.3%) | 5 (9.1%) | ||
| No history of mixed episodes N (%) | 91 (65.5%) | 59 (73.8%) | 29 (52.7%) | ||
| Positive history of psychosis N (%) | 88 (63.3%) | 53 (66.3%) | 32 (58.2%) | χ2 = 0.943 (2) | 0.624 |
| Unclear history of psychosis N (%) | 8 (5.8%) | 4 (5.0%) | 3 (2.9%) | ||
| No history of psychosis N (%) | 43 (30.9%) | 23 (28.8%) | 20 (36.4%) | ||
| Positive history of rapid cycling N (%) | 48 (34.5%) | 23 (28.8%) | 23 (41.8%) | χ2 = 9.294 (2) | 0.010a |
| Unclear history of rapid cycling N (%) | 25 (18.0%) | 10 (12.5%) | 14 (25.5%) | ||
| No history of rapid cycling N (%) | 66 (47.5%) | 47 (58.8%) | 18 (32.7%) | ||
| Chronically ill N (%) | 66 (47.5%) | 26 (32.5%) | 37 (67.3%) | χ2 = 17.255 (2) | <0.001a |
| Unclear course N (%) | 6 (4.3%) | 5 (6.3%) | 0 (0%) | ||
| Not chronically ill N (%) | 67 (48.2%) | 49 (61.3%) | 18 (32.7%) | ||
| BMI mean (SD) | 29.08 (5.52) | 28.03 (4.54) | 30.89 (6.37) | t = 9.308 (1) | 0.003a |
| Age mean (SD) | 39.89 (12.66) | 41.04 (13.18) | 38.31 (11.23) | t = 1.571 (1) | 0.212 |
| Years of illness mean (SD) | 22.01 (12.36) | 20.61 (13.20) | 24.33 (10.72) | t = 2.993 | 0.086 |
| Positive history of sexual abuse N (%) | 40 (28.8%) | 21 (26.3%) | 19 (34.5%) | χ2 = 3.165 (2) | 0.206 |
| Unclear history of sexual abuse N (%) | 37 (26.6%) | 19 (23.8%) | 17 (30.9%) | ||
| Negative history of sexual abuse N (%) | 62 (44.6%) | 40 (50%) | 19 (34.5%) |
a
Statistically significant difference (p <0.05).