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Background To develop a self-report Chinese version of the Yale-Brown Obsessive–Compulsive Scale Modified for Body Dysmorphic Disorder (BDD-YBOCS) and determine its validity and reliability in patients seeking a consultation with a plastic surgeon or undergoing plastic surgery in China. Methods Forward and backward translation and cultural adaptation of the BDD-YBOCS were performed according to recommended guidelines. The self-report Chinese version of the BDD-YBOCS was psychometrically tested using data collected from a cross-sectional validation study, which included 240 patients seeking a consultation with a plastic surgeon or undergoing plastic surgery at the Department of Plastic Surgery, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China, between May and September 2020. Item analysis used the independent sample  t  test and bivariate Pearson test. Content validity was established through expert interviews. Construct validity was measured with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Convergent validity and discriminant validity were analyzed using Pearson’s correlation to evaluate the association between the self-report Chinese version of the BDD-YBOCS and the Body Dysmorphic Disorder Questionnaire (BDDQ). Internal reliability was assessed using Cronbach’s α. Results No items were removed from the original English version of the BDD-YBOCS based on expert interviews and factor analysis. A total of 220 patients completed the study survey (91.7%). EFA extracted 3 factors, which accounted for 64.50% of the variance. CFA supported a 3-factor structure ( χ  2 / df  = 1.322, RMSEA = 0.054, GFI = 0.904, NFI = 0.902, CFI = 0.974 and TLI = 0.966). The scale had good convergent and discriminant validity. Cronbach’s α for the scale was 0.871 ( P  &lt; 0.001) and ranged from 0.852 to 0.873 when individual items were removed. Conclusion The self-report Chinese version of the BDD-YBOCS shows good validity and reliability for use in patients seeking a consultation with a plastic surgeon or undergoing plastic surgery in China. Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors    www.springer.com/00266 .

aesthetic plastic surgery

Reliability and Validity of the Self-Report Chinese Version of the Yale-Brown Obsessive–Compulsive Scale Modified for Body Dysmorphic Disorder (BDD-YBOCS) in Patients Undergoing Plastic Surgery