Community norms of the Muscle Dysmorphic Disorder Inventory (MDDI) among cisgender sexual minority men and women

Jason M Nagata,Matthew R Capriotti,Emilio J Compte,Stuart B Murray,Tiffany A Brown,Juno Obedin-Maliver,Jason M Lavender,Micah E Lubensky,Chloe J Cattle,Annesa Flentje,Mitchell R Lunn

doi:10.1186/s12888-021-03302-2

Abstract

BackgroundRepresenting the pathological extreme pursuit of muscularity, muscle dysmorphia (MD) is characterized by a pervasive belief or fear around insufficient muscularity and an elevated drive for muscularity. Despite evidence of elevated body image-related concerns among sexual minority populations, little is known about the degree of muscle dysmorphia (MD) symptoms among sexual minorities, particularly based on Muscle Dysmorphic Disorder Inventory (MDDI) scores. The objective of this study was to examine the nature and severity of MD symptoms in cisgender sexual minority men and women and provide community norms of the MDDI for these populations.MethodsData from participants in The PRIDE Study, an existing study of health outcomes in sexual and gender minority people from the United States, were examined. Participants included cisgender gay men (N = 1090), cisgender bisexual plus (bisexual, pansexual, and/or polysexual) men (N = 100), cisgender lesbian women (N = 563), and cisgender bisexual plus women (N = 507). We calculated means, standard deviations (SD), and percentiles for the MDDI total and subscale scores for cisgender sexual minority men and women. We compared MDDI scores by sexual orientation using linear regression models, both unadjusted and adjusted for sociodemographics.ResultsOverall, the sample was 85.2% White, 3.0% Asian or Pacific Islander, 2.0% Black, 0.5% Native American, 3.9% multiracial, and 6.6% Hispanic/Latino/a. The mean age was 38.6 (SD = 14.3) and 69.4% had a college degree or higher. Means (SD) for the MDDI total score were 27.4 (7.7) for cisgender gay men, 26.4 (6.4) for cisgender bisexual plus men, 24.3 (6.1) for cisgender lesbian women, and 24.6 (5.5) for cisgender bisexual plus women. There were no significant differences in MDDI scores between cisgender gay and bisexual plus men, or between cisgender lesbian women and bisexual plus women in unadjusted or adjusted models.ConclusionsThese normative data provide insights into the experience of MD symptoms among cisgender sexual minority men and women and can aid researchers and clinicians in the evaluation of MD symptoms and interpretation of MDDI scores in sexual minority populations.

Highlights

Muscle dysmorphia (MD), currently diagnosed using a specifier for Body Dysmorphic Disorder (BDD) in the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5, American Psychiatric Association, 2013), is characterized by the pathological pursuit of muscularity and a preoccupation with one’s body size as not being large enough [1, 2]
In order to address the paucity of muscle dysmorphia (MD) literature on sexual minorities and to provide insights into the nature and degree of MD symptoms within these populations, the present study examined Muscle Dysmorphic Disorder Inventory (MDDI) norms in community samples of cisgender gay men, cisgender bisexual plus men, cisgender lesbian women, and cisgender bisexual plus women
2.0% of participants reported having ever been told by a healthcare provider that they had BDD, and 0.4% reported having been told that they had MD

Summary

Introduction

Muscle dysmorphia (MD), currently diagnosed using a specifier for Body Dysmorphic Disorder (BDD) in the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5, American Psychiatric Association, 2013), is characterized by the pathological pursuit of muscularity and a preoccupation with one’s body size as not being large enough [1, 2]. Along with the shame and distress associated with MD, the time-consuming and rigid nature of the common behavioral patterns promotes significant impairments in social and occupational functioning [2, 4]. These findings emphasize the high degree of distress and impairment than can arise from MD and the importance of characterizing the nature and degree of MD symptoms in at-risk populations. Despite evidence of elevated body image-related concerns among sexual minority populations, little is known about the degree of muscle dysmorphia (MD) symptoms among sexual minorities, based on Muscle Dysmorphic Disorder Inventory (MDDI) scores. The objective of this study was to examine the nature and severity of MD symptoms in cisgender sexual minority men and women and provide community norms of the MDDI for these populations

Objectives

Methods

Results

Discussion

Conclusion