• Jing Wang, Min Zhou, Jing-Yan Xu, Yong-Gong Yang, Qi-Guo Zhang, Rong-Fu Zhou, Bing Chen, and Jian Ouyang.
• Department of Hematology, the Affiliated DrumTower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, PR China.
• Medicine (Baltimore). 2016 Sep 1; 95 (38): e4893.

AbstractThis study aims to investigate whether neutrophil to lymphocyte ratio (NLR) is an independent predictor in newly diagnosed diffuse large B-cell lymphoma (DLBCL) patients in the rituximab era. Data from newly diagnosed DLBCL patients at Nanjing Drum Tower Hospital from 2006 to 2015 were retrospectively reviewed. We used the receiver operating characteristic (ROC) curve analysis to generate the optimal cutoff value for NLR. Among those 156 patients enrolled, the NLR was < 3.0 in 46.8% (73/156) of the patients, and the remaining 53.2% (83/156) had an NLR ≥ 3.0. Patients with higher pretreatment NLR were found to correlate with poorer OS and PFS than these with lower NLR (hazard ratio [HR] = 2.66, 95% confidence interval [CI] = 1.43-4.97, P = 0.002 and HR = 1.79, 95% CI = 1.05-3.07, P = 0.034, respectively). The multivariate Cox proportional hazard model analysis further showed that high NLR was found independently predictive of poor OS (HR = 0.40; CI = 0.19-0.84, P = 0.015) and PFS (HR = 0.57; CI = 0.33-0.98, P = 0.042). Consequently, pretreatment NLR was an independent prognostic predictor in patients with DLBCL in the rituximab era.

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