Oncotarget

Clinical Research Papers:

The ratio of hemoglobin to red cell distribution width as a novel prognostic parameter in esophageal squamous cell carcinoma: a retrospective study from southern China

Peng Sun _, Fei Zhang, Cui Chen, Xiwen Bi, Hang Yang, Xin An, Fenghua Wang and Wenqi Jiang

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Oncotarget. 2016; 7:42650-42660. https://doi.org/10.18632/oncotarget.9516

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Abstract

Peng Sun1,2,*, Fei Zhang1,2,*, Cui Chen3,*, Xiwen Bi1,2, Hang Yang1,2, Xin An1,2, Fenghua Wang1,2, Wenqi Jiang1,2

1State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong Province 510060, P. R. China

2Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong Province 510060, P. R. China

3Department of Oncology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province 510080, P. R. China

*These authors have contributed equally to this work

Correspondence to:

Fenghua Wang, email: wangfh@sysucc.org.cn

Wenqi Jiang, email: jiangwq@sysucc.org.cn

Keywords: esophageal squamous cell carcinoma (ESCC), hemoglobin, red cell distribution width (RDW), prognosis, survival

Received: February 14, 2016     Accepted: April 16, 2016     Published: May 20, 2016

ABSTRACT

Background: We propose a novel prognostic parameter for esophageal squamous cell carcinoma (ESCC)—hemoglobin/red cell distribution width (HB/RDW) ratio. Its clinical prognostic value and relationship with other clinicopathological characteristics were investigated in ESCC patients.

Results: The optimal cut-off value was 0.989 for the HB/RDW ratio. The HB/RDW ratio (P= 0.035), tumor depth (P = 0.020) and lymph node status (P<0.001) were identified to be an independent prognostic factors of OS by multivariate analysis, which was validated by bootstrap resampling. Patients with a low HB/RDW ratio had a 1.416 times greater risk of dying during follow-up compared with those with a high HB/RDW (95% CI = 1.024–1.958, P = 0.035).

Materials and Methods: We retrospectively analyzed 362 patients who underwent curative treatment at a single institution between January 2007 and December 2008. The chi-square test was used to evaluate relationships between the HB/RDW ratio and other clinicopathological variables; the Kaplan–Meier method was used to analyze the 5-year overall survival (OS); and the Cox proportional hazards models were used for univariate and multivariate analyses of variables related to OS.

Conclusion: A significant association was found between the HB/RDW ratio and clinical characteristics and survival outcomes in ESCC patients. Based on these findings, we believe that the HB/RDW ratio is a novel and promising prognostic parameter for ESCC patients.


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