Open Access

Pre‑treatment neutrophil‑to‑lymphocyte ratio predicts survival in patients with laryngeal cancer

  • Authors:
    • Jintao Du
    • Jifeng Liu
    • Xinyuan Zhang
    • Xiaoting Chen
    • Rong Yu
    • Deying Gu
    • Jian Zou
    • Yafeng Liu
    • Shixi Liu
  • View Affiliations

  • Published online on: November 29, 2017     https://doi.org/10.3892/ol.2017.7501
  • Pages:1664-1672
  • Copyright: © Du et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

An increased neutrophil‑to‑lymphocyte ratio (NLR) is associated with poorer prognostic outcomes in numerous types of cancer. However, a small number of studies have demonstrated the prognostic role of NLR in patients with laryngeal cancer. The present study evaluated the association between NLR and survival outcomes in patients with laryngeal squamous cancer. All patients were scheduled for follow‑up visits. The levels of cytokines from tumor tissues were analyzed by ELISA. A classification and regression tree (CART) was used to determine the optimal cutoff values of NLR. The clinical features and NLR were determined using Kaplan‑Meier analysis and Cox regression to analyze the survival outcomes and associated risks. Of the total 654 patients, 70 patients (70/654; 10.7%) failed to receive follow‑up. Blood and biochemical parameters, including NLR, platelet‑to‑lymphocyte ratio and albumin‑to‑globulin ratio were associated with clinical characteristics of the patients, with the exception of histologic grade. Only one node with NLR at 3.18 divided patients into different categories, according to CART analysis. Survival analysis demonstrated that NLR at cutoff values subdivided patients into different survival outcomes (P<0.001). Subsequent to adjustments for age and other clinical features, NLR was identified to be an independent prognostic factor for overall survival and progression‑free survival (P<0.05). Increased levels of cytokines, including IL‑6 and IL‑8, in tumor tissues were associated with NLR values. In summary, pre‑treatment NLR was associated with the prognostic outcomes for patients with laryngeal cancer, and may assist to establish prognostic factors for these patients.

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February 2018
Volume 15 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

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APA
Du, J., Liu, J., Zhang, X., Chen, X., Yu, R., Gu, D. ... Liu, S. (2018). Pre‑treatment neutrophil‑to‑lymphocyte ratio predicts survival in patients with laryngeal cancer. Oncology Letters, 15, 1664-1672. https://doi.org/10.3892/ol.2017.7501
MLA
Du, J., Liu, J., Zhang, X., Chen, X., Yu, R., Gu, D., Zou, J., Liu, Y., Liu, S."Pre‑treatment neutrophil‑to‑lymphocyte ratio predicts survival in patients with laryngeal cancer". Oncology Letters 15.2 (2018): 1664-1672.
Chicago
Du, J., Liu, J., Zhang, X., Chen, X., Yu, R., Gu, D., Zou, J., Liu, Y., Liu, S."Pre‑treatment neutrophil‑to‑lymphocyte ratio predicts survival in patients with laryngeal cancer". Oncology Letters 15, no. 2 (2018): 1664-1672. https://doi.org/10.3892/ol.2017.7501