Background: Several data suggest that COVID-19 pandemic might exacerbate or trigger Eating Disorders (EDs). The aim of this paper was to summarize present literature on COVID pandemic and EDs. Methods: Literature search, study selection, methods, and quality evaluation were performed following PRISMA Guidelines. Results: The systematic search permitted the identification of 91 studies; 21 papers were eligible and included in the review. Nine papers (42.9%) evaluated the effect of pandemic and associated protective and risk factors in EDs patients, ten (47.6%) explored the prevalence of disturbed eating behaviours and risk factors for exacerbating EDs in the general population, and the remaining two (9.5%) were qualitative studies describing the impact of lockdown and quarantine on EDs patients. Their analysis revealed five main findings: 1) changes in physical activities routines were related to a worsening of preoccupation on weight/body shape; 2) food access limitation during pandemic represented a risk factors for both triggering and exacerbating EDs; 3) restriction in healthcare facilities contributed to increase anxiety levels and modifies treatment compliance; 4) social isolation was related to symptoms' exacerbation in EDs patients who are home-confined with family members; 5) conflicts and difficulties in relationships with 'no way out' were maintenance factors for EDs symptoms, especially in adolescents and young adults. Conclusion: COVID-19 pandemic had a negative impact on EDs that might be triggered or worsened by the exceptional conditions deriving from COVID-19-related stress in predisposed subjects. Patients already affected by EDs experienced a worsening of their clinical conditions and related quality of life.

中文翻译：

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COVID大流行期间的饮食失调症：系统评价

背景：一些数据表明，COVID-19大流行可能加剧或引发进食障碍（ED）。本文的目的是总结有关COVID大流行和EDs的现有文献。方法：按照PRISMA指南进行文献检索，研究选择，方法和质量评估。结果：系统检索允许鉴定91项研究。符合条件的论文21篇，被纳入评价。九篇论文（42.9％）评估了大流行以及相关的保护性和危险因素对EDs患者的影响，十篇（47.6％）探讨了饮食失调的患病率和加重EDs的危险因素在普通人群中的情况，其余两篇文章（9.5 ％）是描述锁定和隔离对EDs患者的影响的定性研究。他们的分析揭示了五个主要发现：1）日常体育锻炼的改变与体重/身材的沉迷有关；2）大流行期间的食物获取限制是引发和加剧ED的危险因素；3）对医疗机构的限制加剧了焦虑水平并改变了治疗依从性；4）与家人隔离的ED患者的社会隔离与症状加重有关；5）与“无路可走”的关系中的冲突和困难是EDs症状的维持因素，尤其是在青少年中。结论：COVID-19大流行对易感者有负面影响，易感人群中COVID-19相关压力产生的特殊情况可能触发或加重了ED的恶化。