Enhancing efficacy of a dissonance-based obesity and eating disorder prevention program: Experimental therapeutics.
Enhancing efficacy of a dissonance-based obesity and eating disorder prevention program: Experimental therapeutics.
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DOI：
10.1037/ccp0000682
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发表时间：
2021-10
影响因子：
5.9
通讯作者：
D'Adamo, Laura
中科院分区：
文献类型：
--
作者：
Stice, Eric;Rohde, Paul;Gau, Jeff M;Butryn, Meghan L;Shaw, Heather;Cloud, Kasie;D'Adamo, Laura
检验一个假设，即一个基于不和谐的肥胖/饮食失调预防计划，健康项目，可以通过在单一性别群体中实施它，并增加食物反应抑制和注意力训练来增强其功效。使用2×2析因设计，年轻成年人（N=261; M年龄=19.3，79%女性; 64%白色）被随机分配到（1）单性别或（2）混合性别组，完成食物反应抑制和注意力训练，或（3）单性别或（4）混合性别组，完成非食物图像的一般反应抑制和注意力训练。在前测和后测中评估预先登记的主要结局（体脂、BMI）、进食障碍症状和其他结局。对于一个预先登记的主要结局，体脂减少，两个操纵因素之间存在显著的相互作用（d=-0.28），以及组的性别组成（d=-0.18）和食物反应抑制和注意力训练（d=-0.17）的显著主效应，其中最大的体脂减少发生在实施食物反应抑制和注意力训练的单性别组中。虽然这两个操纵因素并没有显著影响其他结果（包括BMI，另一个预先登记的主要结果），但在所有条件下，进食障碍症状都显著减少（参与者内d=-0.78），与之前的证据相一致，即健康项目比教育对照参与者产生更大的症状减少。结果表明，在单一性别群体中实施食物反应抑制和注意力训练的健康项目产生了最大的体脂减少效果，并显着减少进食障碍症状，这表明有必要努力传播这种预防计划。
Test the hypothesis that the efficacy of a dissonance-based obesity/eating disorder prevention program, Project Health, could be enhanced by implementing it in single-sex groups and adding food response inhibition and attention training. Using a 2×2 factorial design, young adults (N=261; M age=19.3, 79% female; 64% White) were randomized to (1) single-sex or (2) mixed-sex groups that completed food response inhibition and attention training or (3) single-sex or (4) mixed-sex groups that completed generic response inhibition and attention training with nonfood images. Pre-registered primary outcomes (body fat, BMI), eating disorder symptoms and other outcomes were assessed at pretest and posttest. For one pre-registered primary outcome, body fat loss, there was a significant interaction between the two manipulated factors (d=−.28), as well as significant main effects for sex composition of groups (d=−.18) and food response inhibition and attention training (d=−0.17), with the largest body fat loss occurring for single-sex groups implemented with food response inhibition and attention training. Although the two manipulated factors did not significantly affect the other outcomes (including BMI, the other pre-registered primary outcome), there was a significant reduction in eating disorder symptoms across the conditions (within-participant d=−.78), converging with prior evidence that Project Health produced larger reductions in symptoms than educational control participants. Results suggest that implementing Project Health in single-sex groups with food response inhibition and attention training produced the largest body fat loss effects, as well as significant reductions eating disorder symptoms, suggesting that efforts to disseminate this prevention program are warranted.