AUTHOR=Yuk Hyeong Dong , Jeong Chang Wook , Kwak Cheol , Kim Hyeon Hoe , Ku Ja Hyeon TITLE=Elevated Neutrophil to Lymphocyte Ratio Predicts Poor Prognosis in Non-muscle Invasive Bladder Cancer Patients: Initial Intravesical Bacillus Calmette-Guerin Treatment After Transurethral Resection of Bladder Tumor Setting JOURNAL=Frontiers in Oncology VOLUME=Volume 8 - 2018 YEAR=2019 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2018.00642 DOI=10.3389/fonc.2018.00642 ISSN=2234-943X ABSTRACT=The study investigated the pretreatment systemic inflammatory response (SIR) markers of patients who underwent initial intravesical treatment for high-risk non-muscle invasive bladder cancer (NMIBC).385 patients who underwent initial intravesical Bacillus Calmette-Guerin treatment after transurethral resection of bladder tumor were included. We analyzed the relationship between ratio of SIR markers, such as neutrophil-to-lymphocyte ratio (NLR), derived neutrophil-to-lymphocyte ratio (dNLR) and platelet-to-lymphocyte ratio (PLR), and oncological outcomes. Each SIR marker was used for analysis by determining the cut-off value through receiver operation characteristics curves analysis. Patients were divided into two groups according to pretreatment NLR (<1.5 vs ≥1.5), dNLR (<1.2 vs ≥1.2) and PLR values (171