In addition to the evidence of a generalized risk across substances from Table 4 and Table 5, there was substantial evidence of substance-specific risk. Furthermore, the degree of specific risk was greatest for tobacco, followed by marijuana, and lastly alcohol. Although this was not entirely consistent with the literature on relative risk for addiction (Goldman et al., 2005; Goldstein and Kalant, 1990), tobacco was still ranked as the substance with the highest risk of SUD onset.
