In the 2004 NSDUH, past-year prevalence of DSM-IV DUD was higher overall, but followed a similar pattern of 7.3% in Native Americans, 3.6% in Blacks, 3.0% in Hispanics, and 2.6% in Whites, with no statistical differences between 2002 and 2003 or 2003 and 2004 data52. After adjusting for sociodemographic variables, Hispanics were 10% less likely and Blacks were 37% more likely than Whites to have a DSM-IV DUD in the 2002 NSDUH survey52. When each drug was examined individually in the 2005–2007 NSDUH surveys, only DSM-IV cocaine disorders were significantly different among ethnic groups, with Whites (2.0%) having higher rates of past-year cocaine abuse and dependence than Hispanics (0.8%) and Blacks (0.6%)10. In the 2001–2003 NCS-R, lifetime prevalence of DSM-IV DUD was significantly higher in Whites (14.8%) compared with Blacks (10.8%), with Hispanic at 16.1%16.
