Within-subject weight variability in bulimia nervosa: Correlates and consequences.
Within-subject weight variability in bulimia nervosa: Correlates and consequences.
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神经性贪食症的受试者内体重变异性：相关性和后果。
DOI：
10.1002/eat.23502
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Lowe,MichaelR
中科院分区：
文献类型：
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作者：
Chen,JoannaY;Singh,Simar;Lowe,MichaelR
在神经性贪食症（BN）中，暴饮暴食、排毒和节食之间的波动可能会产生大量的受试者体重变异性。虽然体重变异性已经预测了社区样本中的饮食和体重相关变量，但尚未在饮食失调中进行实证检验。目前的研究探讨了横截面和前瞻性的关联之间的重量变异性和BN pathology.Methodfour重量收集了平均42.02天，和重量变异性计算为每个人的体重轨迹回归线周围的均方根误差。进行线性回归，以检查体重变异性和进食障碍的精神病理学之间的关联，横截面在基线和前瞻性在6个月随访，调整基线BMI.ResultsWeight变异性是横截面与进食病理学，但这些关系变得不显着调整BMI后。然而，在6个月的随访中，更大的基线体重变异性预测身体不满意度，形状和体重问题，以及全球饮食病理学的增加，即使在调整基线BMI.DiscussionThese研究结果表明，第一次，受试者内的体重变异性预测BN随着时间的推移更大的饮食障碍病理学。结果增加了证据，表明体重史变量有助于BN的精神病理学，超出了BN中有据可查的心理功能障碍。
ObjectiveThe oscillations between binge eating, purging, and dieting in bulimia nervosa (BN) may produce substantial within‐subject weight variability. Although weight variability has been predictive of eating‐ and weight‐related variables in community samples, it has not been empirically examined in eating disorders. The current study examined cross‐sectional and prospective associations between weight variability and BN pathology.MethodFour weights were collected over an average of 42.02 days, and weight variability was calculated as the root mean square error around each individual's weight trajectory regression line. Linear regressions were performed to examine the association between weight variability and eating disorder psychopathology, cross‐sectionally at baseline and prospectively at 6‐month follow‐up, adjusting for baseline BMI.ResultsWeight variability was cross‐sectionally associated with eating pathology, but these relationships became non‐significant after adjusting for BMI. However, at 6‐month follow‐up, greater baseline weight variability predicted increases in body dissatisfaction, shape and weight concerns, and global eating pathology, even after adjusting for baseline BMI.DiscussionThese findings demonstrate, for the first time, that within‐subject weight variability predicts greater eating disorder pathology over time in BN. The results add to evidence that weight history variables contribute to BN psychopathology above and beyond well‐documented psychological dysfunction in BN.
饮食失调
DOI：
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发表时间：
2021
期刊：
季刊公認心理師
影响因子：
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作者：
陳 曦;守谷 順;脇田 貴文;山蔦圭輔
通讯作者：
山蔦圭輔