Wiss David A, LaFata Erica M, Tomiyama A Janet
Department of Community Health Sciences, Fielding School of Public Health, University of California Los Angeles, 650 Young Drive South, Los Angeles, CA, 90095, USA.
Drexel University Center for Weight Eating and Lifestyle Science, 3201 Chestnut Street, Philadelphia, PA, 19104, USA.
J Eat Disord. 2024 Jun 9;12(1):75. doi: 10.1186/s40337-024-01029-5.
Weight suppression has been defined as diet-induced weight loss, traditionally operationalized as the difference between one's highest and current weight. This concept has been studied in the context of eating disorders, but its value in predicting treatment outcomes has been inconsistent, which may be partially attributed to its calculation.
The current study operationalizes a novel weight suppression score, reflecting the midpoint between the lowest and highest adult weights among adults (N = 287, ages 21-75, 73.9% women) seeking outpatient treatment for disordered eating. This report compared the traditional weight suppression calculation to the novel weight suppression score in a simulated dataset to model their differential distributions. Next, we analyzed shared and distinct clinical correlates of traditional weight suppression versus the novel weight suppression score using clinical intake data.
The novel weight suppression score was significantly associated with meeting criteria for both eating disorders and ultra-processed food addiction and was more sensitive to detecting clinically relevant eating disorder symptomatology. However, the novel weight suppression score (vs. traditional weight suppression) was associated with fewer ultra-processed food addiction symptoms.
The novel weight suppression score may be particularly relevant for those with eating disorders and ultra-processed food addiction, with more relevance to individual eating disorder compared to ultra-processed food addiction symptoms. Consideration of the novel weight suppression score in future research on eating behaviors should extend beyond just those with diagnosed eating disorders.
体重抑制被定义为饮食诱导的体重减轻，传统上通过一个人最高体重与当前体重之间的差异来衡量。这一概念已在饮食失调的背景下进行研究，但其在预测治疗结果方面的价值并不一致，这可能部分归因于其计算方式。
本研究采用了一种新的体重抑制评分方法，该评分反映了寻求饮食失调门诊治疗的成年人（N = 287，年龄21 - 75岁，73.9%为女性）最低和最高成年体重之间的中点。本报告在一个模拟数据集中将传统的体重抑制计算方法与新的体重抑制评分进行了比较，以模拟它们的差异分布。接下来，我们使用临床入院数据分析了传统体重抑制与新体重抑制评分的共同和不同的临床相关性。
新的体重抑制评分与饮食失调和超加工食品成瘾的标准显著相关，并且在检测临床上相关的饮食失调症状方面更敏感。然而，新的体重抑制评分（与传统体重抑制相比）与较少的超加工食品成瘾症状相关。
新的体重抑制评分可能对患有饮食失调和超加工食品成瘾的人特别相关，与个体饮食失调相比，与超加工食品成瘾症状的相关性更大。在未来关于饮食行为的研究中，对新的体重抑制评分的考虑应该不仅仅局限于那些被诊断为饮食失调的人。
