the highest prevalence of past-year cannabis use disorders (3.7%), followed by Black (2.5%), Hispanic (1.8%), White (1.5%), Native Hawaiian/Pacific Islander (1.3%), and Asians (0.8%)44. In the 2008 NSDUH sample, among past-year adult marijuana users (n = 6,917), Hispanics (13.4%) and Blacks (12.3%) had higher rates of dependence than Whites (8.5%) and others (8.1%)44. These data also are consistent with earlier studies, including 1991–1993 NHSDA data, which estimated DSM-IV past-year cannabis dependence in 9.4% of Hispanics, 8.2% of Whites, and 7.8% of Blacks45.
