“…Age, race, gender, income, education, polysubstance use, visit number, and visit type were assessed as potential correlates of validity based on prior literature showing associations between these characteristics and validity of self-reported substance use in different settings (Fendrich, Mackesy-Amiti, & Johnson, 2008; Langendam, van Haastrecht, & van Ameijden, 1999; Rendon et al, 2017; Schuler, Lechner, Carter, & Malcolm, 2009; White et al, 2014). Sexual orientation, HIV status, and depression were included as exploratory candidates based on elevated rates of substance use among sexual minorities (Medley et al, 2016), HIV-positive individuals (Gurung et al, 2017), and those suffering from depression (Swendsen & Merikangas, 2000), which make the validity of self-reported substance use among these groups of particular interest.…”