Table 2.

Clinical characteristics of participants in the Control (n = 93) and Intervention (n = 103) groups at baseline (T0)

	Control	Intervention
	M (SD)	M (SD)
Age diagnosed with BPII	32.10 (12.29)	32.54 (10.05)
	n (%)	n (%)
Years since diagnosis
< 1 year	14 (15.1)	20 (19.4)
1–5 years	35 (37.6)	33 (32.0)
> 5 years	44 (47.3)	50 (48.5)
Previous mental health diagnosis other than BPII (yes)	66 (71.0)	69 (67.0)
BPII episodes (perceived) frequency
Rapid cycling (4 or more times per year)	58 (62.4)	66 (64.1)
2–3 times per year	25 (26.9)	25 (24.3)
Once per year or less often	10 (10.7)	12 (11.7)
BPII episodes (perceived) type
Mainly depressive episodes	48 (51.6)	49 (47.6)
Equal depression/hypomania	35 (37.6)	41 (39.8)
Mainly hypomanic episodes	4 (4.3)	8 (7.8)
Mainly euthymic/subsyndromal	6 (6.5)	5 (4.9)
Current medication (Yes; e.g., Lithium, Lamotrigine)	76 (81.7)	83 (80.6)
Current psychological treatment (Yes; e.g., CBT, ACT)	53 (57.0)	58 (56.3)
Current goal of BPII treatment
Prevent recurrence/relapse	69 (74.2)	78 (75.7)
Treat current depression/hypomania	15 (16.2)	18 (17.5)
Other (e.g., Reduce length and severity of episodes)	9 (9.7)	7 (6.8)
Other chronic medical conditions (Yes)	40 (43.0)	37 (35.9)
Health professionals seen about BPII (> 1 may apply)
Psychiatrist	86 (92.5)	100 (97.1)
GP	77 (82.8)	88 (85.4)
Psychologist	69 (74.2)	70 (68.0)
Counsellor	22 (23.7)	31 (30.1)
Mental health care nurse	22 (23.7)	24 (23.3)
Other health professional (e.g., mental health support worker, peer support worker, acupuncturist)	4 (4.3)	6 (5.8)
Family attended consultation/s (Yes)	49 (52.7)	48 (46.6)
Usual attendance in consultations
Patient alone	79 (84.9)	83 (80.6)
Sometimes alone or accompanied	12 (12.9)	14 (13.6)
Attends accompanied	2 (2.2)	6 (5.8)