Table 2.

Participants’ demographic and clinical characteristics pre-stimulation

Variable/participant number	1	2	3	4	5	6	7	8	Mean (SD)
Age at implant (years)	53	47	48	58	33	32	63	41	46.9 (11.2)
Sex	Female	Female	Male	Female	Male	Male	Male	Female	4 females 4 males
Age at onset (years)	33	35	18	17	20	13	27	22	23.1 (7.9)
Number of inpatient/outpatient treatments	4	1	11	3	7	3	3	3	4.4 (3.2)
Number of medicated assisted treatments	2	2	1	2	1	1	1	1	1.1 (0.8)
Average self-reported daily intakea	24	16	32	19	30	30	16	38	25.6 (8.1)
Self-reported alcohol cravingb	8	8	5	7	5	10	9	9	7.6 (2.2)
ACQ-NOWc	6.3	5.6	5.2	7	4.8	5.9	6.6	5.3	5.8 (0.8)
OCDS (total)d	36	25	31	29	30	32	30	27	30.0 (3.3)
Obsessive subscale	17	11	15	13	13	15	12	12	13.5 (2.0)
Compulsive subscale	19	14	16	16	17	17	18	15	16.5 (1.6)
Other psychiatric disorders	Major depression, post-traumatic stress disorder, panic disorder	Obsessive compulsive disorder		Major depression, anxiety disorder, post-traumatic stress disorder	Major depression, anxiety disorder	Major depression, panic disorder, agoraphobia, antisocial personality disorder	Major depression	Major depression
MADRSe	22	4	13	12	12	17	16	12	13.5 (5.2)
STAI-If	57	59	66	47	47	42	67	51	54.5 (9.2)
STAI-IIf	67	66	68	51	49	54	67	64	60.8 (8.0)

^aAlcohol Timeline Follow-Back over the past month. Average daily self-reported standard drinks

^bSelf-reported alcohol craving ‘right now’; measured on a scale of 0 to 10 where 0 = not craving at all and 10 = the most ever

^cAlcohol craving questionnaire-short form; ranges from 1 to 7

^dObsessive compulsive drinking scale; total score ranges from 0 to 41. Obsessive subscale ranges from 0 to 20. Compulsive scale ranges from 0 to 21

^eMontgomery-Asberg Depression Rating Scale; total score ranges from 0 to 60. Higher scores indicate increasing depressive symptoms

^fSTAI-I measures state anxiety while STAI-II measures trait anxiety. Each subscale ranges from 20 to 80