Bullivant Bianca, Mitchison Deborah, Skromanis Sarah, Mond Jonathan
Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Sydney, Australia.
Department of Psychology, Macquarie University, Sydney, Australia.
Eat Weight Disord. 2020 Aug;25(4):929-938. doi: 10.1007/s40519-019-00708-6. Epub 2019 May 16.
To examine perceptions of the severity of eating disorders and obesity and the effects on these of an information manipulation while also considering the influence of potential covariates such as age, gender, physical and mental health and beliefs about the prevalence and causes of the respective conditions.
Australian women and men (n = 488) aged 18-73 years were randomly assigned to one of four conditions: no information, neutral information, eating disorders emphasis and obesity emphasis. Mixed-model analysis of variance (ANOVA) was used to compare the perceived severity of eating disorders and obesity (within-subjects factor), while also testing the effect of manipulating information, i.e., selectively emphasising the occurrence and adverse effects of one condition or the other (between-subjects factor), on perceptions of severity. Correlational analysis was used to examine associations between perceptions of severity and potential covariates, those covariates for which significant associations were observed being included as covariates in the ANOVA.
Eating disorders were perceived to be a more severe condition than obesity and the information manipulation was largely ineffective. Perceptions of the severity of both eating disorders and obesity were found to be associated with several covariates, including gender, body dissatisfaction, familiarity with and beliefs about the prevalence of eating disorders and beliefs about the causes of both eating disorders and obesity.
The findings support the need for-and provide a platform for-greater collaboration between obesity and eating disorder researchers in the development of integrated prevention and health promotion programs.
Level III.
研究对饮食失调和肥胖严重程度的认知，以及信息操纵对这些认知的影响，同时考虑年龄、性别、身心健康以及对各自疾病患病率和病因的信念等潜在协变量的影响。
将年龄在18 - 73岁之间的488名澳大利亚男性和女性随机分配到四种情况之一：无信息、中性信息、强调饮食失调和强调肥胖。使用方差混合模型分析（ANOVA）来比较饮食失调和肥胖的感知严重程度（受试者内因素），同时测试信息操纵的效果，即选择性地强调一种情况或另一种情况的发生及其不良影响（受试者间因素）对严重程度感知的影响。使用相关分析来检查严重程度感知与潜在协变量之间的关联，对于那些观察到有显著关联的协变量，将其作为协变量纳入ANOVA。
饮食失调被认为比肥胖更严重，且信息操纵在很大程度上无效。饮食失调和肥胖严重程度的感知均与几个协变量相关，包括性别、身体不满意、对饮食失调患病率的熟悉程度和信念以及对饮食失调和肥胖病因的信念。
研究结果支持肥胖和饮食失调研究人员在制定综合预防和健康促进计划方面加强合作的必要性，并为此提供了一个平台。
三级。
