Taking a Deeper Dive Into OSFED Subtypes: A Meta-Analysis and Systematic Review

IF 4.7 2区医学 Q1 NUTRITION & DIETETICS International Journal of Eating Disorders Pub Date : 2024-10-25 DOI:10.1002/eat.24280

Thanh Ba Dang, Elizabeth K. Hughes, An Binh Dang, Heung Ying Lai, Jessica Lee, Shanshan Liu, Jade Portingale, Matthew Fuller-Tyszkiewicz, Isabel Krug

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Abstract

Objective

To compare all other specified feeding or eating disorders (OSFED) groups (atypical anorexia nervosa [AN], purging disorder [PD], night eating syndrome [NES], subthreshold bulimia nervosa [sub-BN], and subthreshold binge-eating disorder [sub-BED]) to threshold eating disorders (EDs [AN, BN, and BED]) and control groups (CGs) on measures of eating and general psychopathology.

Method

We conducted a comprehensive search in PsycINFO, Medline, Embase, and CINAHL on all published studies from January 2013 to February 2024 using DSM-5 diagnostic criteria via clinical interviews or well-established diagnostic tools. We also undertook a quality appraisal using an adapted version of the Downs and Black criteria and registered the review with PROSPERO (ID: CRD42022314495).

Results

Overall, our meta-analyses (n = 33 eligible studies) indicated that the combined OSFED and several specific OSFED subtypes displayed comparable levels of eating psychopathology to full-threshold EDs. Our systematic review (n = 33 eligible studies) found individuals with OSFED to have comparable levels of eating and general psychopathology to full-threshold EDs, but higher levels of eating and general psychopathology than CGs. These findings were specifically attributed to atypical AN and NES. There was a lack of evidence available for sub-BN and sub-BED. Studies mainly met the quality appraisal criteria. The main limitations identified in the included studies were insufficient reporting of their statistical power (78%) and no adjusting for potential confounding factors (67%).

Discussion

Findings support the conceptualization of atypical AN, and NES as clinically significant EDs with similar severity to full-threshold EDs.

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深入研究 OSFED 亚型：元分析和系统回顾。

目的比较所有其他特定进食或进食障碍（OSFED）组（非典型神经性厌食症[AN]、清除障碍[PD]、夜食综合征[NES]、亚阈值神经性贪食症[sub-BN]和亚阈值暴食症[sub-BED]）与阈值进食障碍（EDs [AN、BN和BED]）组和对照组（CGs）在进食和一般精神病理学测量方面的差异：我们在 PsycINFO、Medline、Embase 和 CINAHL 中对 2013 年 1 月至 2024 年 2 月期间发表的所有研究进行了全面检索，通过临床访谈或成熟的诊断工具使用 DSM-5 诊断标准。我们还使用改编版的Downs和Black标准进行了质量评估，并在PROSPERO（ID：CRD42022314495）上注册了该综述：总体而言，我们的荟萃分析（n = 33 项符合条件的研究）表明，综合 OSFED 和几种特定 OSFED 亚型的饮食心理病理学水平与全阈值 ED 相当。我们的系统综述（n = 33 项符合条件的研究）发现，OSFED 患者的进食和一般精神病理学水平与全阈值 ED 患者相当，但进食和一般精神病理学水平高于 CG 患者。这些发现特别归因于非典型 AN 和 NES。亚BN和亚BED缺乏证据。研究主要符合质量评估标准。纳入研究中发现的主要局限性是统计能力报告不足（78%）以及未对潜在混杂因素进行调整（67%）：讨论：研究结果支持将非典型AN和NES概念化为具有临床意义的ED，其严重程度与完全阈值ED相似。

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来源期刊

International Journal of Eating Disorders 医学-精神病学

CiteScore

10.00

自引率

12.70%

发文量

204

审稿时长

4-8 weeks

期刊介绍： Articles featured in the journal describe state-of-the-art scientific research on theory, methodology, etiology, clinical practice, and policy related to eating disorders, as well as contributions that facilitate scholarly critique and discussion of science and practice in the field. Theoretical and empirical work on obesity or healthy eating falls within the journal’s scope inasmuch as it facilitates the advancement of efforts to describe and understand, prevent, or treat eating disorders. IJED welcomes submissions from all regions of the world and representing all levels of inquiry (including basic science, clinical trials, implementation research, and dissemination studies), and across a full range of scientific methods, disciplines, and approaches.