We found one article that examined comorbidity of cannabis use disorders with AUDs among ethnic groups. In the 2005–2007 NSDUH surveys, 8.8% of adult substance users met criteria for past-year co-occurring DSM-IV cannabis use disorder and AUD. The overlap between the two was significantly higher for Blacks (14.5%) compared with Whites (7.9%) and Hispanics (8.9%)14.