“…Indeed, when these groups are divided into more specific categories based on national origin, there are typically large differences in substance use patterns across subgroups (An, Cochran, Mays, & McCarthy, 2008; Caraballo, Yee, Gfroerer, Pechacek, & Henson, 2006; Chen, Unger, Cruz, & Johnson, 1999; Lum, Corliss, Mays, Cochran, & Lui, 2009; Ma, Tan, Toubbeh, & Su, 2003; Siqueira & Crandall, 2008). More studies with sufficient statistical power are needed to take the additional step to subdivide the large categories (e.g., Asian or Hispanic subgroups based on national origin, or even more specific categorizations that take into account the interactions among culture of ancestry, culture of birth, and culture of residence).…”