Family Accommodation of Symptoms in Adults With Obsessive-Compulsive Disorder: Factor Structure and Usefulness of the Family Accommodation Scale for OCD-Patient Version

Abstract

For individuals with obsessive-compulsive disorder (OCD), family accommodation of symptoms, such as over-reassurance, participation in rituals, or facilitation of avoidance, is one of the key factors associated with symptom severity, maintenance, and related impairment. Most studies have assessed accommodation behaviors based on reports from family members or other loved ones. Recently, a patient-rated questionnaire, the Family Accommodation Scale for OCD-Patient Version (FAS-PV) was developed to assess family accommodation from the patient's perspective. This study investigated the factor structure of the FAS-PV and clinical variables associated with patient-reported family accommodation in a sample of 151 treatment-seeking adults with OCD. A confirmatory factor analysis suggested that a 4-factor model best characterized the scale, with the following factors: (1) participation in symptoms, (2) avoidance of OCD triggers, (3) taking on responsibilities, and (4) modifying responsibilities. Internal consistency was high for the total score and for scores on the 4 subscales of the FAS-PV. Approximately 87% of the sample reported accommodation behaviors at some level. Family accommodation was positively correlated with OCD symptom severity and functional disability, and partially mediated the associations between these 2 factors, so that greater OCD severity was associated with greater accommodation, which, in turn, was associated with greater disability. Our findings parallel those of studies that have employed other versions of the FAS and suggest that the FAS-PV is a useful tool for assessing family accommodation of OCD symptoms from the patient's perspective.