Arrests for DUI are a rare occurrence. Only 1% of the driving public reports being arrested for DUI, and more than twice as many males as females are arrested (National Highway Traffic Safety Administration, 2003). Recruiting participants from court-referred DUI treatment settings is thus an efficient method of obtaining sufficient sample sizes for study. However, women are under-represented in DUI samples due to their lower arrest rates relative to men (National Highway Traffic Safety Administration, 2003; Federal Bureau of Investigation, 2006), and fewer women than men are referred by the courts to treatment after a first DUI arrest (Lapham et al., 2000). Furthermore, under-reporting of alcohol symptoms is common in such settings due to concerns about legal complications (Lapham et al., 2004). Individuals with histories of DUI who were not recruited from mandated screening or treatment might be more likely provide accurate symptom estimates than court-referred samples. A population-based sample large enough to capture a sufficient number of DUI offenders for analysis would provide the least biased estimates. The National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) is one
