Table 1

Characteristics of participants at baseline, by intervention group

	N	IX (%) (n=665)	TAU (%) (n=660)	p Value*
Mean age in years (SD)	1325	32.7 (11.3)	32.8 (10.9)	0.86
Male	1325	78.5	79.2	0.74
Indigenous	1325	25.4	25.6	0.94
Married/de facto	1325	34.9	34.2	0.76
<10 years of schooling	1325	41.4	45.3	0.15
Unemployed before prison	1325	52.6	53.5	0.76
Unstable accommodation before prison	1320	17.5	16.0	0.46
Prior prison admission	1325	67.4	67.0	0.88
Median days in prison (SD)	1325	309.8 (549.7)	321.1 (567.0)	0.71
Hepatitis C antibody positive†	1246	17.8	14.4	0.10
Taking ≥1 medication†	1231	48.3	43.6	0.09
High/very high psychological distress‡	1320	27.8	24.2	0.13
Lifetime diagnosis of mental illness	1324	45.3	41.6	0.18
Lifetime injecting drug use history	1322	57.2	54.3	0.30
Risky cannabis use§	1324	47.1	45.6	0.58
Risky heroin use§	1322	17.2	17.9	0.73
Risky methamphetamine use§	1323	38.6	37.9	0.82
Risky alcohol use¶	1296	61.6	61.4	0.93
Current tobacco smoker	1324	80.1	76.4	0.10
Received QCS transitional support	1324	42.5	41.7	0.15
Correctional supervision post-release	1324	59.2	61.1	0.49

*Independent samples t test for continuous variables, χ² test for categorical variables.
†From medical records.
‡According to Kessler Psychological Distress Scale (K10).
§According to Alcohol, Smoking and Substance Use Involvement Screening Test (ASSIST).
¶According to Alcohol Use Disorders Identification Test (AUDIT).
IX, intervention; QCS, Queensland Corrective Services; TAU, treatment as usual.