ALB and nasopharyngeal carcinoma: In this study, further subgroup analysis was performed on the radiotherapy dose and the nutritional intervention, and subgroup analysis of radiotherapy dose was referred to the radiation dose guidelines for NPC.[45] The results of the subgroup analysis showed that albumin levels and BMI in the ≥ 70 Gy dose subgroup were significant after the nutritional intervention, and the reason may be attributed to dose toxicity.