Univariate analysis of OS among patients with advanced lung cancer revealed that smoking status, SUVmax and LDH were significant predictors, whereas PD-L1 expression, sex, age, histology, SUVmaxwb, SUVpeak, SUVmean, SUVmeanwb, MTV, MTVwb, TLG, TLGwb, absolute platelet count, absolute neutrophil count, albumin levels and dNLR were not significant prognostic factors (Table 4). This evidence concerns the gene ALB and lung cancer.