Background Malnutrition is prevalent in colorectal cancer (CRC) and may adversely influence oncologic prognosis and perioperative recovery. This systematic review and meta-analysis quantified associations between malnutrition diagnosed by the Global Leadership Initiative on Malnutrition (GLIM) criteria and clinical outcomes in CRC. Methods This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. PubMed, Embase, Web of Science Core Collection,
