Table 3 Socio-demographic and clinical differences of the BD I sample (n = 370) between patients with long DUI (n = 242) or short DUI (n = 128)
Characteristics | Long DUI (n = 242) | Short DUI (n = 128) | F/χ2 | p |
|---|---|---|---|---|
Sex, n (%) | ||||
 Male | 85 (35.1) | 60 (46.9) | 4.851 | 0.028 |
 Female | 157 (64.9) | 68 (53.1) | ||
Age at onset (years), mean ± sd | 25.09 ± 13.2 | 29.4 ± 9.9 | 8.150 | 0.005 |
Predominant polarity, type, n (%) | ||||
 Depressive | 74 (30.7) | 15 (11.8) | 18.377 |  < 0.001 |
Onset polarity, type, n (%) | ||||
 Depressive | 140 (58.1) | 31 (24.2) | 38.623 |  < 0.001 |
Duration of illness (years), mean ± sd | 23.3 ± 13.6 | 15.0 ± 14.1 | 30.505 |  < 0.001 |
Depressive episodes (number), mean ± sd | 4.7 ± 3.4 | 3.4 ± 3.1 | 11.022 |  < 0.001 |
Affective episodes, total (number), mean ± sd | 8.9 ± 6.0 | 7.7 ± 5.9 | 4.033 | 0.046 |
Lifetime suicide attempts, n (%) | 62 (25.6) | 18 (14.1) | 6.599 | 0.010 |
Lifetime involuntary admissions, n (%) | 62 (46.6) | 44 (61.1) | 3.930 | 0.047 |
Current medical comorbidity, n (%) | 131 (55.3) | 44 (36.7) | 11.037 |  < 0.001 |
Lifetime medical comorbidity, n (%) | 118 (50.2) | 45 (38.1) | 4.610 | 0.032 |