@article{4bfd7cc53dfb438eac66755a2cf32183,
title = "Psychometric validation of the Muscle Dysmorphic Disorder Inventory (MDDI) among U.S. transgender men",
abstract = "Muscle dysmorphia (MD) is characterized by a pervasive belief or fear of insufficient muscularity and an elevated drive for muscularity, representing the pathological and extreme pursuit of muscularity. Psychometric properties of one of the most widely used measures of MD symptoms—the Muscle Dysmorphic Disorder Inventory (MDDI)—have yet to be evaluated in transgender men despite emerging evidence suggesting differential risk for MD symptoms in this population. In this study, we assessed the psychometric properties of the MDDI in a sample of 330 transgender men ages 18–67 years who participated in a large-scale national longitudinal cohort study of sexual and gender minority adults in the U.S. Using a two-step, split-sample approach, an initial exploratory factor analysis supported a three-factor structure and a subsequent confirmatory factor analysis of a re-specified three-factor model demonstrated good overall fit (χ2/df = 1.84, CFI =0.94, TLI =0.92, RMSEA =0.07 [90% CI =0.05,.09], SRMR =0.08). Moreover, results supported the internal consistency and convergent validity of the MDDI subscales in transgender men. Findings inform the use of the MDDI among transgender men and provide a foundation to support further work on the MDDI and MD symptoms among gender minority populations.",
keywords = "Assessment, Gender minority, Muscle dysmorphia, Muscle dysmorphic disorder inventory, Transgender",
author = "Nagata, {Jason M.} and Compte, {Emilio J.} and McGuire, {F. Hunter} and Lavender, {Jason M.} and Murray, {Stuart B.} and Brown, {Tiffany A.} and Capriotti, {Matthew R.} and Annesa Flentje and Lubensky, {Micah E.} and Juno Obedin-Maliver and Lunn, {Mitchell R.}",
note = "Funding Information: JMN is supported by the National Institutes of Health ( K08HL159350 ) and the American Heart Association ( CDA34760281 ). SBM was supported by the National Institutes of Health ( K23 MH115184 ). AF was supported by the National Institute on Drug Abuse ( K23DA039800 ). Research reported in this article was partially funded through a Patient-Centered Outcomes Research Institute ( www.pcori.org ; PPRN-1501–26848 ) to MRL. JOM was partially supported by K12DK111028 from the National Institute of Diabetes, Digestive, and Kidney Disorders . The statements in this article are solely the responsibility of the authors and do not necessarily represent the views of Patient-Centered Outcomes Research Institute, its Board of Governors or Methodology Committee, the Uniformed Services University, the Department of Defense, or the National Institutes of Health. Funding Information: JMN is supported by the National Institutes of Health (K08HL159350) and the American Heart Association (CDA34760281). SBM was supported by the National Institutes of Health (K23 MH115184). AF was supported by the National Institute on Drug Abuse (K23DA039800). Research reported in this article was partially funded through a Patient-Centered Outcomes Research Institute (www.pcori.org; PPRN-1501–26848) to MRL. JOM was partially supported by K12DK111028 from the National Institute of Diabetes, Digestive, and Kidney Disorders. The statements in this article are solely the responsibility of the authors and do not necessarily represent the views of Patient-Centered Outcomes Research Institute, its Board of Governors or Methodology Committee, the Uniformed Services University, the Department of Defense, or the National Institutes of Health. Publisher Copyright: {\textcopyright} 2022 The Author(s)",
year = "2022",
month = sep,
doi = "10.1016/j.bodyim.2022.05.001",
language = "English",
volume = "42",
pages = "43--49",
journal = "Body Image",
issn = "1740-1445",
publisher = "Elsevier BV",
}