Table 2.

Clinical characteristics and baseline data of patients.

N	67
Diagnosis
BD type I	42 (62.7)
BD type II	23 (34.3)
Schizoaffective disorder	2 (3)
Age of onset, years	24.9 ± 11.5 (8-55)
Duration of illness, years	17.6 ± 11.3 (0-49)
First episode: depression	40 (60.6)
Age first depression, years	25.9 ± 12.1 (8-55)
Age first mania/hypomania, years	28.9 ± 11.9 (8-59)
Lifetime psychotic features	37 (55.2)
Total number of hospitalizations
0	9 (13.4)
1-5	45 (67.2)
6-10	13 (19.4)
Lifetime substance abuse	30 (44.8)
Alcohol	18 (26.9)
THC	13 (19.4)
Hard drugs	5 (7.5)
Baseline medication use
Medication-free	6 (9.0)
Lithium	24 (35.8)
Valproate	9 (13.4)
Carbamazepine	3 (4.5)
Lamotrigine	8 (11.9)
Antipsychotic	42 (62.7)
Antidepressant	31 (46.3)
Benzodiazepine	24 (35.8)
Baseline mood episode
Depression	29 (43.3)
(Hypo)mania	29 (43.3)
Mixed	9 (13.4)

Data presented as mean ± SD (range) or n (%). BD, bipolar disorder; THC, tetrahydrocannabinol.