FBL and non-small cell lung carcinoma: AUCs of AFR, Fib, and NLR were apparently higher than Alb and PLR for predicting survival of NSCLC, a significant correlation was observed between AFR and Fib, and the adjusted HR of AFR was the largest to predict the death risk of NSCLC patients in 3 years, suggesting that circulating AFR was superior biomarker to predict survival of NSCLC patients in comparison with the Fib, NLR, Alb, and PLR.