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Oncotarget. 2017 Feb 16;8(34):57460-57469. doi: 10.18632/oncotarget.15404. eCollection 2017 Aug 22.

Prognostic significance of neutrophil-to-lymphocyte ratio in patients with malignant pleural mesothelioma: a meta-analysis.

Author information

1
West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.
2
Department of Medical Oncology, Cancer Center, The State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Guoxue Alley, Chengdu, China.
#
Contributed equally

Abstract

Systemic inflammation responses can be reflected by peripheral blood count and combine index like the neutrophil-to-lymphocyte (NLR). The NLR has been reported to be a poor prognostic indicator in cancer recently. However, the prognostic effect of the NLR in patients with malignant pleural mesothelioma (MPM) still unclear yet. We conducted this meta-analysis aiming to evaluate the pooled value of NLR in prognosis as well as clinical characteristics in malignant pleural mesothelioma. A total of 11 studies with 1533 patients were included in this meta-analysis, in which 10 studies investigated the prognosis role of NLR using hazard ratio (HR) and 95% confidence intervals (95% CI). The elevated NLR was detected to be associated with a poor overall survival (OS)(HR=1.48, 95%CI=1.16-1.89, P < 0.001). The significant prognostic roles of NLR were also indicated in subgroup analyses. NLR level was also associated with histology instead of gender, stage or performance status (PS) score. These findings suggested that the elevated NLR could be a potential prognostic factor for malignant pleural mesothelioma patients and might be associated with histology as an efficient clinical index to stratify patients.

KEYWORDS:

inflammation; malignant pleural mesothelioma; meta-analysis; neutrophil-to-lymphocyte ratio; prognosis

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