Table 4.

Changes in primary outcome (presence of alcohol and illegal drug use in past 30 days) between baseline, 6 months and 12 months

			Use of Alcohol			Use of Illegal drug			Use of Alcohol or drugs
		N	0 days	1 to 30 days	P Value for change relative to baseline	0 days	1 to 30 days	P Value for change relative to baseline	0 days	1 to 30 days	P Value for change relative to baseline
SUPPORT	Baseline	46	38 (82.6%)	8 (17.4%)	-	35 (76.1%)	11 (23.9%)	-	32 (69.6%)	14 (30.4%)	-
	6 months	19	18 (94.7%)	1 (5.3%)	1	17 (89.5%)	2 (10.5%)	1	16 (84.2%)	3 (15.8%)	1
	12 months	13	13 (100%)	0 (0%)	0.75	10 (76.9%)	3 (23.1%)	1	10 (76.9%)	3 (23.1%)	1
TAU	Baseline	54	45 (83.3%)	9 (16.7%)	-	43 (79.6%)	11 (20.4%)	-	40 (74.1%)	14 (25.9%)	-
	6 months	22	14 (63.6%)	8 (36.4%)	0.11	21 (95.5%)	1 (4.5%)	0.13	13 (59.1%)	9 (40.9%)	0.32
	12 months	19	11 (57.9%)	8 (42.1%)	0.11	17 (89.5%)	2 (10.5%)	0.63	11 (57.9%)	8 (42.1%)	0.32