Hübner Claudia, Schmidt Ricarda, Selle Janine, Köhler Hinrich, Müller Astrid, de Zwaan Martina, Hilbert Anja
Leipzig University Medical Center, Integrated Research and Treatment Center AdiposityDiseases, Medical Psychology and Medical Sociology, Department of Psychosomatic Medicine and Psychotherapy, Leipzig, Germany.
Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany.
PLoS One. 2016 Oct 28;11(10):e0165566. doi: 10.1371/journal.pone.0165566. eCollection 2016.
Internalized weight stigma has gained growing interest due to its association with multiple health impairments in individuals with obesity. Especially high internalized weight stigma is reported by individuals undergoing bariatric surgery. For assessing this concept, two different self-report questionnaires are available, but have never been compared: the Weight Self-Stigma Questionnaire (WSSQ) and the Weight Bias Internalization Scale (WBIS). The purpose of the present study was to provide and to compare reliability, convergent validity with and predictive values for psychosocial health outcomes for the WSSQ and WBIS.
The WSSQ and the WBIS were used to assess internalized weight stigma in N = 78 prebariatric surgery patients. Further, body mass index (BMI) was assessed and body image, quality of life, self-esteem, depression, and anxiety were measured by well-established self-report questionnaires. Reliability, correlation, and regression analyses were conducted.
Internal consistency of the WSSQ was acceptable, while good internal consistency was found for the WBIS. Both measures were significantly correlated with each other and body image. While only the WSSQ was correlated with overweight preoccupation, only the WBIS was correlated with appearance evaluation. Both measures were not associated with BMI. However, correlation coefficients did not differ between the WSSQ and the WBIS for all associations with validity measures. Further, both measures significantly predicted quality of life, self-esteem, depression, and anxiety, while the WBIS explained significantly more variance than the WSSQ total score for self-esteem.
Findings indicate the WSSQ and the WBIS to be reliable and valid assessments of internalized weight stigma in prebariatric surgery patients, although the WBIS showed marginally more favorable results than the WSSQ. For both measures, longitudinal studies on stability and predictive validity are warranted, for example, for weight-related and psychosocial outcomes.
内化的体重耻辱感因其与肥胖个体的多种健康损害相关而日益受到关注。尤其是接受减肥手术的个体报告了较高的内化体重耻辱感。为了评估这一概念，有两种不同的自我报告问卷可供使用，但从未进行过比较：体重自我耻辱问卷（WSSQ）和体重偏见内化量表（WBIS）。本研究的目的是提供并比较WSSQ和WBIS的信度、与心理社会健康结果的收敛效度以及预测价值。
使用WSSQ和WBIS评估78例减肥手术前患者的内化体重耻辱感。此外，评估了体重指数（BMI），并通过成熟的自我报告问卷测量了身体意象、生活质量、自尊、抑郁和焦虑。进行了信度、相关性和回归分析。
WSSQ的内部一致性可以接受，而WBIS的内部一致性良好。两种测量方法彼此之间以及与身体意象均显著相关。虽然只有WSSQ与过度关注超重相关，只有WBIS与外貌评价相关。两种测量方法均与BMI无关。然而，在所有与效度测量的关联中，WSSQ和WBIS之间的相关系数没有差异。此外，两种测量方法均显著预测了生活质量、自尊、抑郁和焦虑，而对于自尊，WBIS解释的方差比WSSQ总分显著更多。
研究结果表明，WSSQ和WBIS是减肥手术前患者内化体重耻辱感的可靠且有效的评估方法，尽管WBIS的结果略优于WSSQ。对于这两种测量方法，都有必要进行关于稳定性和预测效度的纵向研究，例如，对于与体重相关和心理社会结果的研究。
