To ensure that differences in psychiatric, psychosocial, and physical health correlates were not confounded by extraneous influences since remission of CUD or ND, respondents who met DSM-IV criteria for past CUD or ND were excluded. Furthermore, to ensure that differences in psychiatric, psychosocial, and physical health correlates were not confounded by disorders that commonly overlap with CUD or ND, respondents who met DSM-IV criteria for current alcohol or non-cannabis substance use disorders were excluded. Percentages and means, weighted to be representative of the US adult population, were computed to compare sociodemographic and substance use characteristics, psychiatric disorders, and psychosocial and physical health correlates in respondents with current (i.e., past 12-month) co-occurring DSM-IV CUD and ND (CUD + ND) vs. current CUD only vs. current ND only. Sociodemographic characteristics were compared using chi-square tests of independence and analysis of variance for categorical and continuous variables, respectively. Although tests of sociodemographic characteristics also included the comparison of CUD only vs. ND only groups, results from this comparison are provided for descriptive purposes only. Substance use characteristics, psychiatric disorders, and psychosocial and physical
