dc.contributor.author | Johnson, Sarah N. | |
dc.contributor.author | Forbush, Kelsie T. | |
dc.contributor.author | Swanson, Trevor James | |
dc.contributor.author | Christensen, Kara A. | |
dc.date.accessioned | 2023-06-13T19:42:11Z | |
dc.date.available | 2023-06-13T19:42:11Z | |
dc.date.issued | 2021-07-13 | |
dc.identifier.citation | Johnson, S. N., Forbush, K. T., Swanson, T. J., & Christensen, K. A. (2021). An empirical evaluation of the diagnostic threshold between full-threshold and sub-threshold bulimia nervosa. Eating behaviors, 42, 101540. https://doi.org/10.1016/j.eatbeh.2021.101540 | en_US |
dc.identifier.uri | https://hdl.handle.net/1808/34369 | |
dc.description.abstract | Previous research has failed to find differences in eating disorder and general psychopathology and impairment between people with sub- and full-threshold bulimia nervosa (BN). The purpose of the current study was to test the validity of the distinction between sub- and full-threshold BN and to determine the frequency of objective binge episodes and inappropriate compensatory behaviors that would best distinguish between sub- and full-BN. Community-recruited adults (83.5% female) with current sub-threshold (n = 105) or full-threshold BN (n = 99) completed assessments of eating-disorder psychopathology, clinical impairment, internalizing problems, and drug and alcohol misuse. Receiver operating characteristic curve analysis was used to evaluate whether eating-disorder psychopathology, clinical impairment, internalizing problems, and drug and alcohol misuse could empirically discriminate between sub- and full-threshold BN. The frequency of binge episodes and inappropriate compensatory behaviors (AUC = 0.94) was “highly accurate” in discriminating between sub- and full-threshold BN; however, only objective binge episodes was a significant predictor of BN status. Internalizing symptoms (AUC = 0.71) were “moderately accurate” at distinguishing between sub- and full-BN. Neither clinical impairment (AUC = 0.60) nor drug (AUC = 0.56) or alcohol misuse (AUC = 0.52) discriminated between groups. Results suggested that 11 episodes of binge eating and 17 episodes of inappropriate compensatory behaviors optimally distinguished between sub- and full-BN. Overall, results provided mixed support for the distinction between sub- and full-threshold BN. Future research to clarify the most meaningful way to discriminate between sub- and full-threshold is warranted to improve the criterion-related validity of the diagnostic system. | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2021 Elsevier Ltd. All rights reserved. | en_US |
dc.subject | Diagnosis | en_US |
dc.subject | Classification | en_US |
dc.subject | DSM-5 | en_US |
dc.subject | Bulimia nervosa | en_US |
dc.subject | Other specified feeding and eating disorders (OSFED) | en_US |
dc.subject | ROC curve analysis | en_US |
dc.title | An empirical evaluation of the diagnostic threshold between full-threshold and sub-threshold bulimia nervosa | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Johnson, Sarah N. | |
kusw.kuauthor | Forbush, Kelsie T. | |
kusw.kuauthor | Swanson, Trevor James | |
kusw.kuauthor | Christensen, Kara A. | |
kusw.kudepartment | Psychology | en_US |
dc.identifier.doi | 10.1016/j.eatbeh.2021.101540 | en_US |
kusw.oaversion | Scholarly/refereed, author accepted manuscript | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.identifier.pmid | PMC10044451 | en_US |
dc.rights.accessrights | embargoedAccess | en_US |