Abstract
Studies comparing individuals with loss of control (LOC) eating who do and do not have objectively large binge episodes have found that degree of LOC is more important than binge size to psychological and behavioral outcomes. However, the relative importance of these characteristics has not been investigated in a population with binge eating disorder (BED), who by definition all have objectively large binge episodes. Persons with BED and higher weight (N = 34) were enrolled in a BED treatment trial and completed the Loss of Control Over Eating Scale, the Eating Disorder Examination, and measures of eating behavior, mood, and quality of life. Body mass index (BMI) was calculated from measured height and weight. The size of the largest binge episode (measured in kilocalories) and degree of LOC were entered into multiple regression equations to determine their relationships with disordered eating symptoms, depression, quality of life, and BMI in this pilot study. Greater LOC had a stronger independent association than binge size with higher total eating psychopathology, shape dissatisfaction, hunger, food cravings and food addiction symptoms. Larger binge size had a stronger independent association than LOC with higher weight concern and lower general and social quality of life. Both characteristics were associated with higher eating concern and neither were associated with depression or BMI. Both binge size and degree of LOC are associated with important psychosocial treatment targets in patients with BED. Future research should validate the largest binge episode measurement method and replicate the present findings in a larger sample.
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Funding
This investigator-initiated study was supported by an unrestricted grant from Novo Nordisk (KCA). AMC was supported, in part, by the National Institute of Nursing Research of the National Institutes of Health under Award Number K23NR017209. AMC reports grant funding from and serving on advisory boards for Shire Pharmaceuticals; consulting for WW International, Inc., outside the current work. RIB reports grant support from Eisai Inc. and Novo Nordisk as well as consulting for WW International, Inc., outside the current work.
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MBB, JST, AMC, RIB, TAW, and KCA conceived the study hypotheses. MBB, AMC, EJ, CM, KG, CMW, RIB and KCA performed study assessment procedures. MBB and JST performed the statistical analyses. MBB, JST, AMC, TAW, and KCA collaborated to interpret the results and draft the initial manuscript. All authors participated in the subsequent revisions and approval of the final manuscript.
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The authors (Maija B. Bruzas, Jena S. Tronieri, Ariana M. Chao, Elizabeth Jones, Cooper McAllister, Kathryn Gruber, Courtney McCuen-Wurst, Robert I. Berkowitz, Thomas A. Wadden, Kelly C. Allison) have no conflicts of interest to declare that are relevant to the content of this article.
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This study was approved by the University of Pennsylvania’s institutional review board and performed in accordance with the ethical standards set forth in the 1964 Declaration of Helsinki.
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Appendix
Appendix
Examples of rules applied for calorie estimation of binge episodes
For fast-food items, participants usually provided enough information to match the foods directly in the database (e.g., McDonald’s McGriddle, Wendy’s medium fries). For pizza, potato chips, ice cream, cookies, and cereal, brands were only sometimes provided, so we picked standard popular brands from our region (unless the patient stated a particular brand and type/flavor). Some examples of these are in the table below. In some cases, our selections might have underestimated calories in an item for a participant (e.g., we assumed Breyers natural vanilla but the participant actually had Breyers Snickers ice cream which has more calories). In other cases, our selections might have overestimated calories in an item (e.g., we assumed Honey Nut Cheerios but the participant actually had Rice Chex which has fewer calories). This is a limitation to our study, but the choices would suggest that our over- and under-estimates happened equally.
Food | Brand | Variety |
---|---|---|
Pizza | Domino’s © | 14 inch cheese pizza |
Potato chips | Lays © | Classic potato chips |
Ice cream | Breyers © | Natural vanilla ice cream |
Crackers | Keebler © | Club crackers |
Cereal | General Mills © | Honey Nut Cheerios |
Cookies | Keebler © | Chips Ahoy chocolate chip |
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Bruzas, M.B., Tronieri, J.S., Chao, A.M. et al. Binge size and loss of control as correlates of eating behavior and psychopathology among individuals with binge eating disorder and higher weight. J Behav Med 45, 603–612 (2022). https://doi.org/10.1007/s10865-022-00312-7
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DOI: https://doi.org/10.1007/s10865-022-00312-7