Abstract
As a result of the growing media attention and increased use of illicit substances seen in recent years (Chen et al., 2011; Dendenhardt & Hall, 2001; Kendler et al., 2012), researchers have increased their focus on the topic of substance abuse (Dutra et al., 2008) and co-occurring disorders. Having comorbid or co-occurring mental health disorders has shown to impair treatment, prognosis, outcomes, and diagnosis of many health conditions. Using data from the National Comorbidity Survey (NCS)), the current thesis explores the specific consequences and patterns associated with having a co-morbid diagnosis of substance abuse and anxiety disorder as compared to just having a diagnosis of substance abuse or anxiety alone. Specific variables considered include age of onset, seeking of treatment, and treatment outcomes. The unique challenges faced by patients with a comorbid diagnosis of substance and anxiety are discussed.