ArticleJournal of gastrointestinal oncology2025
Body mass index-defined overweight (but not obese) correlates with better postoperative prognosis in colorectal cancer.
Article in Journal of gastrointestinal oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Surgery is the cornerstone of treatment for colorectal cancer (CRC), and postoperative prognosis is a hot topic in CRC research. Although body mass index (BMI) is closely related to the occurrence and development of CRC, its impact on prognosis remains controversial. The purpose of this study is to explore the impact of different BMI levels on the postoperative prognosis of CRC. Methods: Two hundred and four patients who underwent primary radical CRC surgery in the Department of Gastrointestinal Surgery of The First Affiliated Hospital of Chongqing Medical University from January 2019 to June 2019 were retrospectively collected. According to BMI, they were classified into low/normal weight (BMI <24 kg/m Results: Overweight BMI emerged as an independent protective factor, markedly lowering the risk of CRC recurrence or progression [hazard ratio (HR) =0.367; 95% confidence interval (CI): 0.175-0.769] and cancer-related mortality (HR =0.273; 95% CI: 0.105-0.714). Overweight patients consequently exhibited significantly better RPFS (P=0.02) and OS (P=0.004). Peripheral CD8 Conclusions: Overweight patients exhibited significantly better prognosis, possibly attributable to an activated immune status and adequate nutritional reserves, suggesting that CRC patients might benefit from appropriate perioperative weight gain.
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