The characteristics of unacceptable/taboo thoughts in obsessive–compulsive disorder

Abstract

BackgroundIn the quest to unravel the heterogeneity of obsessive–compulsive disorder (OCD), an increasing number of factor analytic studies are recognising unacceptable/taboo thoughts as one of the symptom dimensions of OCD. AimsThis study aims to examine the characteristics associated with unacceptable/taboo thoughts. MethodsUsing the Yale–Brown Obsessive–Compulsive Scale Symptom Checklist (YBOCS-SC) with 154 individuals with OCD, obsessive–compulsive symptoms were subjected to principal components analysis. The characteristics associated with the resulting symptom dimensions were then assessed using logistic and linear regression techniques. ResultsUnacceptable/taboo thoughts comprised of sexual, religious and impulsive aggressive obsessions, and mental rituals. Higher scores on an unacceptable/taboo thoughts symptom dimension were predicted by higher Y-BOCS obsession subscores, Y-BOCS time preoccupied by obsessions scores, Y-BOCS distress due to obsessions scores, importance of control of thought ratings, male gender, and having had treatment prior to entering into the study. Unacceptable/taboo thoughts were also predicted by greater levels of hostility, and a past history of non-alcohol substance dependence. ConclusionsAn unacceptable/taboo thought symptom dimension of OCD is supported by a unique set of associated characteristics that should be considered in the assessment and treatment of individuals with these symptoms.