Childhood history of behavioral inhibition and comorbidity status in 256 adults with social phobia
2011
Abstract Background Behavioral inhibition (BI), a heritable temperament, predisposes one to an increased risk of social phobia. Recent investigations have reported that BI may also be a precursor to anxiety as well as depressive and alcohol-related disorders, which are frequently comorbid with social phobia. In the present study, we explored the relationship between BI and psychiatric disorders in 256 adults with a primary diagnosis of social phobia. Methods BI severity was retrospectively assessed with the Retrospective Self-Report of Inhibition (RSRI). The severity of social phobia and the presence of comorbid diagnoses were evaluated with the Liebowitz Social Anxiety Scale (LSAS) and the Mini-International Neuropsychiatric Interview, respectively. Results The RSRI score was significantly and positively correlated with both the LSAS score and the occurrence of a major depressive disorder. No significant association was found with other anxiety and substance-related disorders. Limitation The assessment of BI was retrospective and self-reported. Conclusion A childhood history of BI was associated with an increased risk of depressive comorbidity in social phobia.
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