“…Recent research has focused on various psychological risk factors for overdose, such as depression, posttraumatic stress disorder, and suicidal behaviour (Bohnert, Roeder, & Ilgen, 2011; Bradvik, Frank, Hulenvik, Medvedeo, & Berglund, 2007; Havens et al, 2011; Pabayo, Alcantara, Kawachi, Wood, & Kerr, 2013; Tobin & Latkin, 2003b). While evidence suggests that experiences of childhood trauma are strong predictors of depression and suicide in IDU (Marshall, Galea, Wood, & Kerr, 2013; Walton et al, 2011), childhood trauma has received little attention as a risk factor for non-fatal overdose, despite being reported at a high rate within IDU and at-risk (i.e.…”