Laboratory Medicine ›› 2024, Vol. 39 ›› Issue (4): 376-381.DOI: 10.3969/j.issn.1673-8640.2024.04.011

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Prognosis of RDW-SD and RDW-CV in breast cancer patients with lymphatic metastasis

HUANG Lei1, TANG Wenjia2, ZHOU Yan2, ZHOU Jiaye2, ZHANG Chunyan3(), YANG Jing2(), WANG Beili2, PAN Baishen2, GUO wei2   

  1. 1. Department of Clinical Laboratory,Xiamen Hospital,Zhongshan Hospital,Fudan University,Xiamen 361015,Fujian,China
    2. Department of Clinical Laboratory,Zhongshan Hospital,Fudan University,Shanghai 200032,China
    3. Department of Clinical Laboratory,Shanghai Geriatrics Center,Shanghai 201104,China
  • Received:2023-07-13 Revised:2023-10-26 Online:2024-04-30 Published:2024-05-07

Abstract:

Objective To investigate the relationship between preoperative red blood cell distribution width-standard deviation(RDW-SD) and red blood cell distribution width-coefficient of variation(RDW-CV) and prognosis in breast cancer patients with lymphatic metastasis. Methods From January 2018 to February 2022,156 female breast cancer patients with lymphatic metastasis confirmed by postoperative pathology in Xiamen Hospital of Zhongshan Hospital of Fudan University were enrolled. The RDW-SD,RDW-CV,clinicopathological indicators and prognostic data of patients were collected. Cox regression model was used to look for risk factors for poor prognosis. The predictive values of RDW-SD and RDW-CV in poor prognosis were analyzed by receiver operating characteristic(ROC) curve. According the optimal values of RDW-CV and RDW-SD,the 156 breast cancer patients with lymphatic metastasis were classified into high and low expression groups. Disease-free survival was calculated using Kaplan-Meier survival analysis. Results There was statistical significance in RDW-SD and RDW-CV in patients with different TNM stages(P<0.001). RDW-CV in diagnosing Ⅳ stage and evaluating poor prognosis [areas under curves(AUC)=0.838 and 0.773,respectively,P<0.001] were more effective than RDW-SD(AUC=0.780 and 0.729,respectively,P<0.05). Preoperative RDW-CV was an independent risk factor for poor prognosis [hazard ratio(HR)=1.46,95% confidence interval(CI) 1.13-1.89,P=0.004]. Postoperative disease-free survival rate of RDW-CV high expression group and RDW-SD high expression group were lower than those of low expression groups(P<0.001). Conclusions RDW-CV is superior to RDW-SD in preoperative prognosis assessment of breast cancer patients with lymphatic metastasis,and high RDW-CV is an independent risk factor for poor prognosis.

Key words: Red blood cell distribution width-standard deviation, Red blood cell distribution width-coefficient of variation, Breast cancer, Lymphatic metastasis, Prognosis

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