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Pretreatment Hematocrit Is Superior to Hemoglobin as a Prognostic Factor for Triple Negative Breast Cancer

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  • Bo Chen
  • Danian Dai
  • Hailin Tang
  • Xiaohong Ai
  • Xi Chen
  • Xiaoyan Zhang
  • Zhiyan Li
  • Xiaoming Xie

Abstract

Background: Anemia usually refers to low hemoglobin (Hb) levels. Previous studies indicated that anemia negatively influence the survival in various cancers. Hematocrit (HCT) is the volume percentage of red blood cells in blood, which could indicate anemia in both individuals and populations. This study compared the value of HCT with that of Hb for predicting outcomes of patients who underwent treatment for triple negative breast cancer (TNBC). Methods: A retrospective study of 293 triple negative breast cancer patients, accepting treatment from January 2004 to December 2009 at Sun Yat-sen University Cancer Center, was conducted. Kaplan-Meier curves and multivariate Cox proportional models were used to calculate disease free survival (DFS) and overall survival (OS). Results: The cut-off value of HCT was 35.9% determined by X-tile software analysis. The cut-off value of Hb was 12.0 g/dl based on the World Health Organization (WHO) criteria. In univariate analysis, low HCT and low Hb were both significantly associated with decreased DFS and OS. In multivariate analysis, HCT (HR: 0.570; 95% CI: 0.331–0.981, P = 0.042 for DFS; HR: 0.456; 95% CI: 0.256–0.813, P = 0.008 for OS) was still identified as independent predictor of outcome, but not Hb. Conclusion: Pretreatment low HCT is independently associated with poor prognosis in TNBC patients. However, HCT was found to be superior to Hb in terms of predicting breast cancer mortality. In the future, large-scale prospective studies or validation studies are needed to verify our findings.

Suggested Citation

  • Bo Chen & Danian Dai & Hailin Tang & Xiaohong Ai & Xi Chen & Xiaoyan Zhang & Zhiyan Li & Xiaoming Xie, 2016. "Pretreatment Hematocrit Is Superior to Hemoglobin as a Prognostic Factor for Triple Negative Breast Cancer," PLOS ONE, Public Library of Science, vol. 11(11), pages 1-12, November.
    • Handle: RePEc:plo:pone00:0165133
    DOI: 10.1371/journal.pone.0165133
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