Exploring the role of the DSM-5 performance-only specifier in adolescents with social anxiety disorder.

The DSM-5 social anxiety disorder section has recently added the performance-only specifier for individuals whose anxiety is limited to speaking or performing in public. The impact of the DSM-5 performance-only specifier remains a neglected area. The sample comprised 44 healthy controls and 50 adolescents with a clinical diagnosis of SAD (20% met criteria for the performance-only specifier). Findings revealed that adolescents with the specifier had a later age of onset; lower levels of depression, social anxiety symptomatology and clinical severity; and a lesser degree of comorbidity relative to adolescents with SAD but excluding the performance-only specifier. Specifiers only evidenced higher (cognitive) social anxiety symptomatology compared to healthy controls. Results of this study also suggested that the performance-only specifier may correspond to a mild form of social anxiety disorder. Data also revealed that SAD exists on a continuum of severity among healthy controls, specifier participants, and those with both interactional and performance fears, which is consistent with a dimensional structure for SAD. Finally, findings suggested a unique comorbid pattern for specifiers and those adolescents with SAD but excluding the performance-only specifier. The implications of these findings for the etiology, assessment, classification, and treatment of social anxiety in youth are discussed.