• 1. Division of Gastrointestinal Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, P. R. China;
  • 2. West China School of Medicine, Sichuan University, Chengdu 610041, P. R. China;
  • 3. West China School of Public Health, Sichuan University, Chengdu 610041, P. R. China;
WANG Xiaodong, Email: wangxiaodong@wchscu.cn
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Objective To analyze the effects of preoperative protein level on the survival prognosis of patients underwent colorectal cancer (CRC) surgery in the current Database from Colorectal Cancer (DACCA). Methods According to the established screening criteria, the patient information was extracted from the updated version of DACCA on November 24, 2024. The survival curves of the patients with and without preoperative hypoproteinemia were plotted by Kaplan-Meier method and the log-rank test was used to compare. The univariate and multivariate Cox regression analysis were used to analyze the preoperative hypoproteinemia affecting postoperative survival (overall survival and disease-specific survival) of patients with CRC. The test level was α=0.05. Results A total of 1 217 patients with CRC were included, and 252 of 1 217 patients with preoperative hypoproteinemia, with an incidence of 20.7%. The survival curves showed that the overall survival and disease-specific survival of the patients with preoperative hypoproteinemia were worse than those without preoperative hypoproteinemia (χ2=43.411, P<0.001; χ2=41.171, P<0.001). However, the multivariate Cox regression analysis did not find that the preoperative hypoproteinemia was a risk factor for postoperative survival (overall survival and disease-specific survival as observed indicators) in the patients with CRC [overall survival: HR (95%CI)=1.013 (0.741, 1.385), P=0.938; disease-specific survival: HR (95%CI)=1.003 (0.719, 1.399), P=0.987]. Conclusion The results of this study suggest that the incidence rate of preoperative hypoproteinemia in patients with CRC is higher, and the survival prognosis is worse than that in patients without preoperative hypoproteinemia.

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