Lifetime prevalence of hoarding disorder symptoms in adults with an eating disorder: A systematic review and meta-analysis.

Hoarding disorder has been found to co-occur with eating disorders. However, no prior systematic reviews or meta-analyses have examined the pooled lifetime prevalence of hoarding disorder symptoms in adults with an eating disorder. Based on PRISMA guidelines, 4 electronic databases (MEDLINE, PubMed, PsycINFO, and Cochrane) were searched on September 17, 2025. A total of 539 articles were identified for screening using a combination of search terms. The effect size is the pooled lifetime prevalence of hoarding disorder symptoms among adults with an eating disorder. A total of 5 studies were included in the overall meta-analysis for hoarding disorder symptom prevalence. The results revealed that the pooled lifetime prevalence of hoarding disorder symptoms in adults with an eating disorder was 24 % (95 % CI: 0.23-0.25) with low heterogeneity between studies (I2 = 12.0 %). Results suggest that hoarding disorder symptoms co-occur often with eating disorders. Based on these findings, clinicians should consider screening for comorbid hoarding disorder when assessing for eating disorders.