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Neutrophil-to-lymphocyte Ratio in Head and Neck Cancer Prognosis: A Systematic Review and Meta-analysis

Overview
Journal Head Neck
Date 2018 Jan 23
PMID 29356179
Citations 58
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Abstract

Background: Hematologic markers, such as the neutrophil-to-lymphocyte ratio (NLR), characterize the inflammatory response to cancer and are associated with poorer survival in various malignancies. We evaluate the effect of pretreatment NLR on overall survival (OS) in patients with head and neck squamous cell carcinoma (HNSCC).

Methods: Using multiple databases, a systematic search for articles evaluating the effect of NLR on OS in patients with HNSCC was performed. An inverse variation, random-effects model was used to analyze the data.

Results: A total of 24 of 241 articles, including 6479 patients, were analyzed. The combined hazard ratio for OS in patients with an elevated NLR (range 2.04-5) was 1.78 (confidence interval [CI] 1.53-2.07; P < .0001). The hazard ratios for site-specific cancer: oral cavity 1.56 CI 1.23-1.98 (P < .001), nasopharynx 1.66 CI 1.35-2.04 (P < .001), larynx 1.55 CI 1.26-1.92 (P < .001), and hypopharynx 2.36 CI 1.54-3.61 (P < .001).

Conclusion: An elevated NLR is predictive of poorer OS in patients with HNSCC.

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