Flynn Rebecca L, Massion Thomas A, Kosmas Jacqueline A, Smith Shannon R, Mastronardi Carli N, Graham Andrea K
Center for Behavioral Intervention Technologies, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
Front Psychol. 2023 May 22;14:1146549. doi: 10.3389/fpsyg.2023.1146549. eCollection 2023.
Negative affect is an established predictor of binge eating, yet less is known about positive affect. Low positive affect has been theorized to increase binge eating, but a better understanding is needed on the relationship between positive affect and binge eating frequency and size. Participants were 182 treatment-seeking adults (76% self-identified as female; 45% self-identified their race as Black and 40% as White; and 25% self-identified their ethnicity as Hispanic/Latino) with self-reported recurrent binge eating (≥12 binge episodes in the past 3 months). Participants completed the positive and negative affect schedule (PANAS) survey and the eating disorder examination to assess frequency of objective binge episodes (OBEs) and subjective binge episodes (SBEs) over the past 3 months. OBEs and SBEs also were combined to yield total binge episodes over the past 3 months. Independent -tests and linear regression analyses were used to test associations between positive affect scores and binge episode size and frequencies, and to compare low versus higher positive affect on binge frequency. Additional exploratory models were conducted controlling for negative affect, identity characteristics, and socio-demographic variables. Lower positive affect was significantly associated with more frequent total binge episodes, but not OBEs and SBEs when assessed independently. Findings remained consistent when controlling for covariates and when comparing individuals with the lowest versus higher positive affect levels. Overall, results lend support to the theory that low positive affect is associated with binge eating. Increasing positive affect may be an important treatment consideration for those with recurrent binge eating.
消极情绪是暴饮暴食的既定预测因素，但关于积极情绪的了解较少。理论上认为低积极情绪会增加暴饮暴食，但需要更好地理解积极情绪与暴饮暴食频率及量之间的关系。研究参与者为182名寻求治疗的成年人（76%自我认定为女性；45%自我认定种族为黑人，40%为白人；25%自我认定族裔为西班牙裔/拉丁裔），他们自我报告有反复暴饮暴食行为（过去3个月内≥12次暴饮暴食发作）。参与者完成了正负性情绪量表（PANAS）调查以及饮食失调检查，以评估过去3个月内客观暴饮暴食发作（OBE）和主观暴饮暴食发作（SBE）的频率。OBE和SBE也被合并以得出过去3个月内的总暴饮暴食发作次数。采用独立样本t检验和线性回归分析来检验积极情绪得分与暴饮暴食发作量及频率之间的关联，并比较低积极情绪与高积极情绪对暴饮暴食频率的影响。还进行了额外的探索性模型分析，控制了消极情绪、身份特征和社会人口统计学变量。较低的积极情绪与更频繁的总暴饮暴食发作显著相关，但单独评估时与OBE和SBE无关。在控制协变量以及比较积极情绪水平最低与较高的个体时，研究结果保持一致。总体而言，研究结果支持了低积极情绪与暴饮暴食相关的理论。对于有反复暴饮暴食行为的人来说，增加积极情绪可能是一个重要的治疗考虑因素。
