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Prognostic significance of neutrophil-to-lymphocyte ratio in cervical cancer: A systematic review and meta-analysis of observational studies

期刊

ONCOTARGET
卷 8, 期 10, 页码 16755-16764

出版社

IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.15157

关键词

cervical cancer; inflammatory; neutrophil; lymphocyte; prognosis

资金

  1. National Natural Science Foundation of China [81401208, 81671466]
  2. Natural Science Foundation of Guangdong Province [2015A030310025]
  3. President Grant from Nanfang Hospital [2014B003]

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Background and aims: The prognostic role of neutrophil-to-lymphocyte ratio (NLR) in cervical cancer are controversial. We conducted this meta-analysis to obtain a more accurate assessment of prognostic significance of NLR in cervical cancer. Results: A total of 9 studies, consisting of 2,804 patients, were selected in this meta-analysis. Our pooled results showed that high pre-treatment NLR level was significantly associated with poorer overall survival (HR: 1.88, 95% CI 1.30-2.73) and shorter progression free survival (HR 1.65, 95% CI 1.18-2.29). Additionally, increased NLR was also significantly correlated with tumor size (OR 2.05, 95% CI 1.14-3.65), advanced FIGO stage (OR 2.12, 95% CI1.28-3.49) and lymph node involvement (OR 2.24, 95% CI 1.65-3.04). Materials and Methods: We conducted a systematic literature search using the electronic databases PubMed, Web of Science, and Embase up to May 2016. Statistical analysis was performed using Stata 10.0. Conclusions: Elevated pretreatment NLR could serve as a predicative factor of poor prognosis for cervical cancer patients.

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