Hoarding behaviors in a large college sample.

Hoarding behaviors occur in many clinical syndromes but are most commonly linked to obsessive compulsive disorder. Surprisingly little empirical work has examined the nature of hoarding behaviors despite their association with significant distress and impairment. The current study examined hoarding in 563 unselected college students. Using principal components analysis, we identified four domains of hoarding behaviors as measured by the 26-item Saving Inventory-Revised: Difficulty Discarding, Acquisition Problems, Clutter, and Interference/Distress. All four domains and total hoarding behaviors were strongly related to hoarding beliefs and to obsessive compulsive (OC) symptoms. Hoarding behaviors were most strongly correlated with subscales of an OC disorder (OCD) measure assessing hoarding and obsessions and least strongly correlated with the washing subscale. Hoarding behaviors also showed significant, but more modest, correlations with social anxiety, depressive symptoms, and worry. However, worry was not found to contribute unique variance to the prediction of hoarding behaviors. Of greatest note, hoarding behaviors showed a surprisingly strong relationship with anxiety sensitivity, similar in magnitude to the relationship between hoarding and OCD symptoms. Results are interpreted and lines of future research are proposed, with particular emphasis on further elucidating the relationship between hoarding behaviors and anxiety sensitivity.