Characteristics | Long DUI (n = 400) | Short DUI (n = 80) | F/χ2 | p |
---|---|---|---|---|
Age at onset (years), mean ± sd | 29.0 ± 11.6 | 38.0 ± 16.5 | 34.466 |  < 0.001 |
Predominant polarity, type, n (%) | ||||
 Depressive | 267 (66.8) | 41 (51.2) | 7.038 | 0.030 |
Onset polarity, type, n (%) | ||||
 Depressive | 325 (81.5) | 48 (60.0) | 19.044 |  < 0.001 |
Duration of illness (years), mean ± sd | 22.7 ± 13.3 | 10.8 ± 12.6 | 54.660 |  < 0.001 |
Depressive episodes (number), mean ± sd | 5.9 ± 4.6 | 4.1 ± 4.2 | 10.718 | 0.001 |
Affective episodes, total (number), mean ± sd | 9.8 ± 7.6 | 7.0 ± 7.8 | 8.875 | 0.003 |