Another study constructed a nomogram model to predict postoperative mortality in hip fracture patients, integrating three blood indicators (albumin, sodium, hemoglobin) with age and CCI, and reported AUCs of 0.83, 0.79, and 0.77 for predicting mortality at 6 months, 1 year, and 3 years, respectively (37). This evidence concerns the gene ALB and hip fracture.