Substance use: 9. Other measures of alcohol use (skewed data)
Study	Intervention	Mean	SD	N
Alcohol volume (AUI subscale)
Hickman 1997	Treatment	18.1	9.93	15
Hickman 1997	Control	14.6	13.6	15
Drinking days ‐ by 6 months
Graeber 2003	Treatment	3.10	6.24	15
Graeber 2003	Control	12.73	8.25	13
Alcohol consumption, last 30 days (ASI) ‐ 3 months
Bonsack 2011	Treatment	6.2	9.1	30
Bonsack 2011	Control	5.13	8.2	30
Alcohol consumption, last 30 days (ASI) ‐ 6 months
Bonsack 2011	Treatment	5.57	8.5	30
Bonsack 2011	Control	6.43	10	30
Alcohol use (AUDIT) ‐ 3 months
Graham 2016	Treatment	15.11	7.71	9
Graham 2016	Control	13.09	7.92	11
Alcohol use (CAUS) ‐ 3 months
Graham 2016	Treatment	2.25	1.22	12
Graham 2016	Control	2.18	0.98	11
Drug use (CDUS) ‐ 3 months
Graham 2016	Treatment	1.89	0.90	18
Graham 2016	Control	2.41	1.06	17
Drug use (SDS) ‐ 3 months
Graham 2016	Treatment	4.64	4.18	14
Graham 2016	Control	5.31	3.68	13