Table 2.

Substance Use Disorder (SUD) treatment history in the sample (N = 444) and in each substance specific subsample.

	Total sample (N = 444)	Cannabis (n = 166)	Opioids (n = 155)	Stimulants (n = 123)	Post-hoc
SUD treatment history prior to psychedelic session
None***	262 (59.0%)	122 (73.5%)	63 (40.6%)	77 (62.6%)	C = S > O
Treatment center/detox***	59 (13.3%)	7 (4.2%)	41 (26.5%)	11 (8.9%)	C = S < O
Counseling***	115 (25.9%)	24 (14.5%)	64 (41.3%)	27 (22.0%)	C = S < O
Phone counseling	13 (2.9%)	1 (.6%)	7 (4.5%)	5 (4.1%)
Website counseling	30 (6.8%)	6 (3.6%)	17 (11.0%)	7 (5.7%)
Hypnosis	7 (1.6%)	0 (0.0%)	7 (4.5%)	0 (0.0%)
Acupuncture	17 (3.8%)	2 (1.2%)	11 (7.1%)	4 (3.3%)
Support group***	72 (16.2%)	9 (5.4%)	42 (27.1%)	21 (17.1%)	C < O = S
Self-help	74 (16.7%)	17 (10.2%)	35 (22.6%)	22 (17.9%)
Spiritual practice	61 (13.7%)	17 (10.2%)	27 (17.4%)	17 (13.8%)
Medications (for opioid group only)
Methadone	–	–	24 (15.5%)	–
Naltrexone	–	–	8 (5.2%)	–
Buprenorphine	–	–	35 (22.6%)	–
SUD treatment history following psychedelic session
None***	281 (63.3%)	129 (77.7%)	73 (47.1%)	79 (64.2%)	C > S > O
Treatment center/detox	16 (3.6%)	2 (1.2%)	8 (5.2%)	6 (4.9%)
Counseling***	55 (12.4%)	9 (5.4%)	34 (21.9%)	12 (9.8%)	C = S < O
Phone counseling	4 (.9%)	0 (0.0%)	3 (1.9%)	1 (.8%)
Website counseling	8 (1.8%)	4 (2.4%)	3 (1.9%)	1 (.8%)
Hypnosis	4 (.9%)	0 (0.0%)	2 (1.3%)	2 (1.6%)
Acupuncture	6 (1.4)	0 (0.0%)	4 (2.6%)	2 (1.6%)
Support group	30 (6.8%)	5 (3.0%)	20 (12.9%)	5 (4.1%)
Self-help***	36 (8.1%)	6 (3.6%)	25 (16.1%)	5 (4.1%)	C = S < O
Medications (for opioid group only)
Methadone	–	–	5 (3.2%)	–
Naltrexone	–	–	6 (3.9%)	–
Buprenorphine	–	–	11 (7.1%)	–
Spiritual practice	71 (16.0%)	20 (12.0%)	36 (23.2%)	15 (12.2%)

SUD, Substance Use Disorder. ***p < .001.