Usefulness of pretreatment neutrophil to lymphocyte ratio in predicting disease-specific survival in breast cancer patients.

J Breast Cancer. 2013 Mar;16(1):55-9.

Noh H, Eomm M, Han A.

Department of Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea.

Abstract

PURPOSE: The purpose of this study was to investigate the prognostic impact of pretreatment neutrophil to lymphocyte ratio (NLR) on breast cancer in view of disease-specific survival and the intrinsic subtype.

METHODS: We retrospectively studied patients diagnosed with primary breast cancer that had completed all phases of primary treatment from 2000 to 2010. The association between pretreatment NLR and disease-specific survival was analyzed.

RESULTS: A total of 442 patients were eligible for analysis. Patients with higher NLR (2.5 ≤NLR) showed significantly lower disease-specific survival rate than those with lower NLR (NLR <2.5). Higher NLR along with negative estrogen receptor status and positive nodal status were independently correlated with poor prognosis, with hazard ratio 4.08 (95% confidence interval [CI], 1.62-10.28), 9.93 (95% CI, 3.51-28.13), and 11.23 (95% CI, 3.34-37.83), respectively. Luminal A subtype was the only intrinsic subtype in which higher NLR patients showed significantly poor prognosis (87.7% vs. 96.7%, p=0.009).

CONCLUSION: Patients with an elevated pretreatment NLR showed poorer disease-specific survival than patients without elevated NLR, most evident in the luminal A subtype. Further validation and a feasibility study are required before it can be considered for clinical use.

KEYWORDS: Breast neoplasms, Lymphocytes, Neutrophils

PMID: 23593082

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