Native American tribes are diverse and show variation in AUD prevalence. Data collected from 1,660 individuals from seven tribes in 1998–2001 as part of the Ten Tribes study found past-year and lifetime rates of DSM-IV ranged substantially across the tribes25. For example, lifetime dependence was 21–56% in men and 17–30% in women in six of the tribes and only 1–2% in one tribe. In a study comparing DSM-IV AUDs in Southwest (n = 1,446) and Northern Plains (n = 1,638) tribes, past-year (4.5% vs. 9.8%) and lifetime (9.8% vs. 16.6%) prevalence of dependence significantly differed for the tribes26.
