“…Three studies (Guo et al, 2016;Malte et al, 2017;Toro et al, 1997) involved case management programs. The ecologically based treatment used by Guo et al (2016) Regarding outcome variables in the included studies, seven studies assessed substance use behaviours such as substance craving, addiction severity, drug dependency, and drinking status (Chang et al, 2010;Garland et al, 2016;Malte et al, 2017;Reback et al, 2010;Salem et al, 2017;Toro et al, 1997;Upshur et al, 2015). Depression was assessed in five studies (Garland et al, 2016;Guo et al, 2016;Himle et al, 2014;Krabbenborg et al, 2017;Medalia et al, 2017), anxiety in five studies (Chang et al, 2010;Garland et al, 2016;Himle et al, 2014;Krabbenborg et al, 2017;Medalia et al, 2017), mental health status in four studies (Chang et al, 2010;Guo et al, 2016;Malte et al, 2017;Upshur et al, 2015), PTSD symptoms in three studies (Garland et al, 2016;Held & Owens, 2015;Lester et al, 2007), psychological distress in two studies (Medalia et al, 2017;Toro et al, 1997), self-efficacy in two studies (Guo et al, 2016;Toro et al, 1997), and quality of life in two studies (Krabbenborg et al, 2017;Shern et al, 2000).…”