A Multimethod Analysis of Incompleteness and Visual "Not Just Right" Experiences in Body Dysmorphic Disorder

A comparison of 'not just right experiences' in obsessive-compulsive disorder, anxiety and depressive disorders and non-clinical controls in China

OBJECTIVE

The aim of this study is to investigate the characteristics of 'not just right experiences' (NJREs) in patients with obsessive-compulsive disorder (OCD), anxiety disorders (ADs) or major depressive disorder (MDD), compared with those of healthy controls (HCs).

METHOD

One hundred adults with OCD, 86 adults with ADs, 57 adults with MDD and 60 HCs were enrolled in the study. The Not Just Right Experiences Questionnaire Revised (NJRE-QR), Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI) were used to evaluate clinical symptoms in patients with OCD, ADs or MDD. The Obsessive Belief Questionnaire-44 (OBQ-44) was used to evaluate OC beliefs in the OCD patients. The HCs only received assessment using the NJRE-QR. Analysis of variance (ANOVA) and covariance (ANCOVA) were performed to compare the NJREs scores across the groups, while Pearson correlation and partial correlation analyses were used to examine the association between NJREs and other clinical features. The contribution of NJREs to predict OC symptoms was determined by multiple stratified linear regression.

RESULTS

Individuals with OCD had significantly higher scores for the number of NJREs than ADs, but not MDD. The severity of NJREs was also significantly higher in patients with OCD than those with MDD or ADs (F = 5.23 and F = 19.79, respectively, P < 0.01). All the clinical scores in the NJRE-QR were significantly higher than those in the HC group. The number and severity of NJREs correlated significantly with the Y-BOCS total score (r = 0.29 and r = 0.39, respectively, P < 0.01). NJREs showed an independent contribution to OC symptoms, which alone explained 8% of the variation (F = 16.49, ΔR2  = 0.08; P < 0.01).

CONCLUSION

NJREs are related closely to OC symptoms, with their severity discriminating between OCD patients and those with ADs or MDD. NJREs were more specific for OCD in the Chinese population and are therefore worthy of further study in the future.

Reliability and Validity of the Self-Report Version of the Yale-Brown Obsessive-Compulsive Scale Modified for Body Dysmorphic Disorder

Despite its frequent use in research studies, the self-report version of the Yale-Brown Obsessive-Compulsive Scale modified for Body Dysmorphic Disorder (BDD-YBOCS-SR) is yet to be formally validated. The present investigation sought to examine the psychometric properties of the BDD-YBOCS-SR across three different samples. In Study 1 (N = 847), we sought to explore the factor structure of the BDD-YBOCS-SR. In addition, we evaluated the convergent and divergent validity with similar self-report measures. In Study 2 (N = 187), the convergence of the BDD-YBOCS-SR with reactivity to an in vivo appearance-related task was observed. In Study 3, we compared scores on the BDD-YBOCS-SR between a clinical sample of individuals with BDD (n = 50) and a "healthy" control sample (n = 51). We further observed the BDD-YBOCS-SR's sensitivity to treatment and convergence with the rater-administered version in the clinical sample. The BDD-YBOCS-SR demonstrated strong psychometric properties across all three studies. Scores on the BDD-YBOCS-SR were found to be strongly associated with appearance anxiety, reactivity to the appearance task, and the rater-administered BDD-YBOCS. The present investigation provides support for the BDD-YBOCS-SR's utility in measuring body dysmorphic symptom severity for use in research and clinical settings.

The relationship between body dysmorphic disorder symptoms and 'not just right' experiences in a sample of individuals seeking cosmetic surgery and aesthetic medicine procedures

BACKGROUND

Body dysmorphic disorder (BDD) is characterized by concerns for perceived defects in physical appearance that appear to others as mild or unobservable. Individuals with BDD frequently refer concerns with their physical appearance being 'not right' (not just right experiences; NJREs), and BDD-related behaviours may be performed until their appearance is perceived as 'right'. The aim of the study was to explore the relationship between BDD and NJREs in cosmetic surgery and aesthetic medicine settings.

METHODS

Individuals requesting cosmetic procedures with BDD symptoms (BDD-symptoms group; n = 24), without BDD symptoms (cosmetic intervention [CI] group; n = 45), and individuals that have never required these procedures (no cosmetic intervention [NCI] group; n = 53) entered the study.

RESULTS

Results showed a greater number of past-month NJREs, higher NJREs severity, higher drive for thinness, and greater general distress in the BDD-symptoms group. Pertaining to features associated with NJREs (perfectionism and obsessive-compulsive disorder symptoms) and ED core features, the BDD-symptoms group scored higher only with respect to NCI. Regression analyses showed that BDD symptoms were predicted by age, NJREs severity, and drive for thinness above and beyond general distress, perfectionism, obsessive-compulsive disorder symptoms, bulimia, and body dissatisfaction related to weight and shape in the BDD-Symptoms group (in comparison with the CI and NCI groups).

CONCLUSIONS

NJREs may represent a potential vulnerability factor for BDD symptoms in cosmetic settings.