Prevalence of DSM-5 past-year and lifetime illicit drug use disorder (DUD, based on amphetamine, cannabis, club drug, cocaine, heroin, other opioids, hallucinogen sedative/tranquilizer, and inhalants/solvent use disorders) in NESARC-III were 3.9% and 9.9%, respectively49. By ethnicity, past-year and lifetime rates were 6.9% and 17.2% in Native Americans, 5.9% and 9.9% in Blacks, 3.7% and 10.8% in Whites, 3.9% and 7.2% in Hispanics, and 1.4% and 4.0%, respectively, in Asians. Rates were lower in Hispanics and Asians for DUD compared with Whites49, similar to rates for non-medical opioid use disorders when examined alone50. DSM-IV prevalence of past-year illicit drug use disorder (DUD, abuse and dependence) in NESARC-I was 2.0% in the total population. Rates in ethnic groups generally followed a similar pattern for past-year DUD as those in NESARC-III at 4.9% in Native Americans, 2.4% in Blacks, 1.9% in Whites, 1.7% in Hispanics, and 1.4% in Asians. Native Americans were significantly higher than all other ethnic groups studied28. Lifetime DUD in the total population was 10.3% and was highest in Native Americans at 18.4%, followed by Whites at 11.3%, Blacks at 8.7%, Hispanics at 7.2%, and Asians at 3.8%51.
