Preoperative lymphocyte-to-monocyte ratio versus platelet-to-lymphocyte ratio as a prognostic predictor for non-small cell lung cancer patients

• Published in: Journal of medical biochemistry Vol. 39; no. 2; pp. 160 - 164
• Main Authors: Yan, Haixi, Cai, Linling, Chen, Shuaishuai, Li, Jun
• Format: Journal Article
• Language: English
• Published: Serbia Society of Medical Biochemists of Serbia, Belgrade 23.01.2020
• Subjects: lymphocyte/monocyte; non-small cell lung cancer; Original Paper; platelet count/lymphocyte; prognosis overall survival - disease-free survival; non-small cell lung cancer; lymphocyte/monocyte; prognosis overall survival - disease-free survival; platelet count/lymphocyte
• ISSN: 1452-8258; 1452-8266; 1452-8266
• DOI: 10.2478/jomb-2019-0031

We investigated the prognostic value of the preoperative lymphocyte-to-mononuclear ratio (LMR) and platelet-to-lymphocyte ratio (PLR) in a large cohort of patients with non-small cell lung cancer (NSCLC). Clinical-pathological data from 507 NSCLC patients at Taizhou Hospital of Zhejiang Province between 2010 and 2016 were retrospectively evaluated. X-tile software was used to assess the optimal cutoff levels for LMR and PLR. Univariate and multivariate Cox regression models were used to assess the prognostic factors. The median follow-up duration after surgical resection was 34.5 months. Patients were stratified into 2 groups by LMR (2.6 and > 2.6) and PLR (179.6 and > 179.6). Our results revealed that lower LMR (HR = 3.163 (1.821-5.493), P = 0.000), age (HR = 2.252 (1.412-3.592), P = 0.001), T stage (HR = 3.749 (2.275-6.179), P = 0.000), N stage (HR = 3.106 (1.967-4.902), P = 0.000), and cut edge (HR = 3.830 (1.077-13.618), P = 0.038) were considered to be independent indicators for overall survival (OS) of NSCLC patients. For disease-free survival (DFS), age, sex, T stage, N stage, LMR and cut edge were verified to be independent prognostic factors in patients with NSCLC. In the study cohort, reduced LMR was a robust independent predictor for both OS and DFS in patients with NSCLC who underwent surgical resection.