Treatment Outcomes in a Partial Hospital Program for Patients with Social Anxiety Disorder: The Effects of Comorbid Major Depression

Although previous studies have examined the impact of comorbid major depressive disorder (MDD) on social anxiety disorder (SAD), the results have been somewhat mixed. Furthermore, most studies have been conducted in inpatient or outpatient settings. Given the large body of literature that suggests that this particular comorbidity can have negative effects on treatment efficacy and outcomes, it is important to continue to explore its impact. The present study aims to clarify contradictions in the literature and expands on previous studies by examining patients in a partial hospitalization setting. Patients at Rhode Island Hospital with a diagnosis of SAD were compared to those with comorbid SAD and MDD on pre-treatment and post-treatment measures of anxiety and depression. The results indicated that while the comorbid group showed significantly less improvement post-treatment on anxiety symptoms and constructs related to remission from depression, they did not show significantly less improvement on depression symptoms. The implications of these results for clinical practice are discussed. KEYWORDS: Social Anxiety Disorder; Major Depressive Disorder; Comorbid Anxiety Disorders; Comorbid Mood Disorders; Treatment Outcomes; Partial Hospitalization Program