Tables 5a and 5b present the 12-month prevalences of AUD and ND among NESARC and KECA respondents with mood disorders and anxiety disorders, respectively. Among those with at least 1 past-year mood disorder, rates of any comorbid past-year AUD were comparable among Americans and Koreans (17.9% and 15.0%, respectively) (Table 5a). Among those with at least 1 past-year anxiety disorder, rates of any past-year AUD were numerically greater among Americans than Koreans (14.2% vs. 8.9%), though the difference was not statistically significant (Table 5b). In contrast, a significantly greater rate of ND was observed in the U.S. than in Korea among individuals with any 12-month mood disorder (30.0% versus 8.4%, p<0.001), and among those with any 12-month anxiety disorder (27.2% versus 4.3%, p<0.001). The significant excess of comorbid ND among Americans compared to Koreans was also reflected in rates of almost all specific disorders considered in this study.
