Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.

The neutrophil-to-lymphocyte ratio (NLR) is a useful biomarker that reflects systemic inflammation responses. However, the prognostic value of the NLR in patients with primary liver cancer (PLC) remains controversial. We performed a meta-analysis of 26 studies (comprising 4,461 patients) to evaluate...

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Main Authors: Tong-Chun Xue, Lan Zhang, Xiao-Yin Xie, Ning-Ling Ge, Li-Xin Li, Bo-Heng Zhang, Sheng-Long Ye, Zheng-Gang Ren
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4008563?pdf=render
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author Tong-Chun Xue
Lan Zhang
Xiao-Yin Xie
Ning-Ling Ge
Li-Xin Li
Bo-Heng Zhang
Sheng-Long Ye
Zheng-Gang Ren
author_facet Tong-Chun Xue
Lan Zhang
Xiao-Yin Xie
Ning-Ling Ge
Li-Xin Li
Bo-Heng Zhang
Sheng-Long Ye
Zheng-Gang Ren
author_sort Tong-Chun Xue
collection DOAJ
description The neutrophil-to-lymphocyte ratio (NLR) is a useful biomarker that reflects systemic inflammation responses. However, the prognostic value of the NLR in patients with primary liver cancer (PLC) remains controversial. We performed a meta-analysis of 26 studies (comprising 4,461 patients) to evaluate the association between the pre-treatment NLR and clinical outcomes of overall survival (OS) and disease-free survival (DFS) in patients with PLC. The correlation between NLR and tumor characteristics or other inflammation-related parameters was also assessed. Data were synthesized using the random-effects model of DerSimonian and Laird, and the hazard ratio (HR) or odds ratio (OR) with 95% confidence interval (CI) was used to estimate effect size. Our analysis indicated that a high NLR predicted poor OS (HR, 2.102; 95% CI: 1.741-2.538) and DFS (HR, 2.474; 95% CI: 1.855-3.300) for PLC. A high NLR was associated with the presence of tumor vascular invasion (OR: 1.889, 95% CI: 1.487-2.400; p<0.001) and an elevated alpha-fetoprotein level (OR: 1.536; 95% CI: 1.152-2.048; p = 0.003). Thus, we conclude that a high NLR indicates a poor prognosis for patients with PLC and may also be predictive for PLC invasion and metastasis. Subgroup analysis suggested that the predictive role of NLR in cholangiocarcinoma is limited, and a further large study to confirm these findings is warranted.
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spelling doaj.art-632a7530c2b64d8dbbbf8fcc8ab318bc2022-12-21T17:50:44ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0195e9607210.1371/journal.pone.0096072Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.Tong-Chun XueLan ZhangXiao-Yin XieNing-Ling GeLi-Xin LiBo-Heng ZhangSheng-Long YeZheng-Gang RenThe neutrophil-to-lymphocyte ratio (NLR) is a useful biomarker that reflects systemic inflammation responses. However, the prognostic value of the NLR in patients with primary liver cancer (PLC) remains controversial. We performed a meta-analysis of 26 studies (comprising 4,461 patients) to evaluate the association between the pre-treatment NLR and clinical outcomes of overall survival (OS) and disease-free survival (DFS) in patients with PLC. The correlation between NLR and tumor characteristics or other inflammation-related parameters was also assessed. Data were synthesized using the random-effects model of DerSimonian and Laird, and the hazard ratio (HR) or odds ratio (OR) with 95% confidence interval (CI) was used to estimate effect size. Our analysis indicated that a high NLR predicted poor OS (HR, 2.102; 95% CI: 1.741-2.538) and DFS (HR, 2.474; 95% CI: 1.855-3.300) for PLC. A high NLR was associated with the presence of tumor vascular invasion (OR: 1.889, 95% CI: 1.487-2.400; p<0.001) and an elevated alpha-fetoprotein level (OR: 1.536; 95% CI: 1.152-2.048; p = 0.003). Thus, we conclude that a high NLR indicates a poor prognosis for patients with PLC and may also be predictive for PLC invasion and metastasis. Subgroup analysis suggested that the predictive role of NLR in cholangiocarcinoma is limited, and a further large study to confirm these findings is warranted.http://europepmc.org/articles/PMC4008563?pdf=render
spellingShingle Tong-Chun Xue
Lan Zhang
Xiao-Yin Xie
Ning-Ling Ge
Li-Xin Li
Bo-Heng Zhang
Sheng-Long Ye
Zheng-Gang Ren
Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.
PLoS ONE
title Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.
title_full Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.
title_fullStr Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.
title_full_unstemmed Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.
title_short Prognostic significance of the neutrophil-to-lymphocyte ratio in primary liver cancer: a meta-analysis.
title_sort prognostic significance of the neutrophil to lymphocyte ratio in primary liver cancer a meta analysis
url http://europepmc.org/articles/PMC4008563?pdf=render
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