Despite recent interest in how rates of psychiatric disorders vary in Latinos (Breslau et al., 2006; Grant et al., 2004; Vega and Sribney, 2003) there are only a couple of studies, which have looked specifically at comorbidity of SUD in SC as a function of ethnicity. Montross et al. (2005) found the prevalence of DD was lower in Latino Americans than in European and African Americans in San Diego County (US). An epidemiologic study conducted in Mexican Americans found the lifetime prevalence of SUD in those subjects with comorbid psychotic symptoms was 20% for immigrants and 49% for those born in the US (Vega et al., 2006). Outside of these two studies there are no published reports of SC and SUD comorbidity rates in samples of Latino subjects and no epidemiologic studies that have investigated these comorbidities in an international sample.
