Safety behavior reduction for appearance concerns: A randomized controlled trial of a smartphone-based intervention

Appearance concerns are a core feature of multiple psychiatric disorders (i.e., body dysmorphic disorder, eating disorders, and social anxiety disorders). Individuals with these concerns commonly engage in appearance-related safety behaviors (ARSB), behaviors intended to avoid, prevent, or manage the negative evaluation of one's physical appearance. The present study evaluated a brief ARSB reduction intervention for appearance concerns.

Women with elevated appearance concerns (N = 203) were recruited from across the United States and randomized to receive one of two 1-month smartphone-based interventions targeting ARSBs or unhealthy behaviors (UHBs). Both consisted of daily text messages with links to behavior checklists and reminders to avoid the respective behaviors.

Participants in both treatments saw substantial reductions in symptoms. Though the UHB fading condition showed significantly better treatment adherence than ARSB fading, ARSB fading led to significantly lower appearance concerns (sr² = .028, p = .014) and eating disorder symptoms (sr² = .024, p = .020) at posttreatment, and lower appearance concerns (sr² = .041, p = .004), eating disorder symptoms (sr² = .029, p = .006), social anxiety (sr² = .048, p = .005), and appearance importance at 1-month follow-up (sr² = .042, p = .011), relative to UHB fading. Changes in ARSBs were found to partially mediate the effect of treatment on appearance concerns.

These preliminary findings provide novel evidence for the efficacy of targeting ARSBs and suggest that this text-based intervention may be an efficacious and accessible intervention for women with elevated appearance concerns. (PsycInfo Database Record (c) 2024 APA, all rights reserved).