ALB and lung cancer: In addition, there are many objective and concise indicators have been proved to be associated with the prognosis of DLBCL patients, such as the serum albumin (ALB) [7], body mass index (BMI) [8], geriatric nutritional risk index (GNRI) [9], advanced lung cancer inflammation index (ALI) [10], and prognostic nutritional index (PNI) [11].