Use of the neutrophil to lymphocyte ratio (NLR) and the platelet to lymphocyte ratio (PLR) for prognostication of patients with early-stage non-small cell lung cancer (NSCLC) treated with stereotactic body radiation therapy (SBRT): a systematic review

Background and purposeThe neutrophil to lymphocyte (NLR) and platelet to lymphocyte (PLR) ratios are markers of systemic inflammation with uncertain prognostic utility. Thus, we conducted a systematic review of NLR and PLR as prognostic factors for overall survival (OS), progression-free survival (PFS), and local control (LC) of patients with stage 1 non-small cell lung cancer (NSCLC) following stereotactic body radiotherapy (SBRT) with …