Reliability and validity of a Chinese version of the Modified Body Image Scale in patients with symptomatic pelvic organ prolapse

Objective: To validate a Chinese version of the Modified Body Image Scale (MBIS) among patients with symptomatic pelvic organ prolapse. Methods: As part of a validation study at a center in Beijing, China, women with symptomatic pelvic organ prolapse stage II or greater completed the Chinese version of the MBIS, the 12-item Short-Form Health Survey (SF-12), and the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12). A sample of 30 women was randomly chosen to return 2 weeks later to complete the questionnaires again. The reliability and validity of the MBIS were assessed. Results: Overall, 52 patients participated. A Cronbach a of 0.926 demonstrated adequate internal consistency of the Chinese MBIS. Its reproducibility was demonstrated by intraclass correlation coefficient values of 0.554-0.963 (P < 0.01 for all items). Confirmatory factor analysis supported its construct validity. The MBIS and SF-12 scores were negatively correlated (r = 0390; P < 0.001), and the MBIS and PISQ-12 scores were also negatively correlated (r = 0.709; P < 0.001). Conclusion: The Chinese version of the MBIS is a reliable and valid tool to evaluate body image perception among patients with symptomatic pelvic organ prolapse. (C) 2015 Published by Elsevier Ireland Ltd. on behalf of International Federation of Gynecology and Obstetrics.