Figure 2 shows lifetime and past-year prevalence rates of any drug use disorder, any cocaine use disorder, any marijuana use disorder, and any opiate use disorder for each gender and BMI category before controlling for covariates. Table 3 shows ORs and CIs resulting from the logistic regression analyses, controlling for covariates, with drug use disorders as the dependent variables. BMI was not significantly associated with lifetime or past-year “any drug use disorder” in either gender. Analysis of specific drug use disorders revealed a trend toward increased risk for any lifetime opiate use disorder among overweight women but the finding was not significant, nor was BMI significantly associated with risk for any opiate use disorder among men. There were no significant interactions between BMI and gender for any lifetime or past-year drug use disorder. Removing lifetime and past-year alcohol use disorders and nicotine dependence covariates resulted in the emergence of a negative association between obesity and any past-year drug use disorder in men, F(2)=3.77, p<.05, OR=0.66, CI=0.49–0.90.
