Comparison of the prediction of death between candidate SI models using the dataset for SI validation.

Model 3 was selected for SI, because it showed the highest c-statistic for the prediction of all-cause death.Abbreviations: SI, Survival index; all death, all-cause death; CVD, cardiovascular disease; PEW, protein energy wasting; AIC, Akaike information criterion; HL test, Hosmer-Lemeshow test; GNRI, geriatric nutritional risk index; CS, Combined score; BMI, body mass index; Cr, serum creatinine level; Alb, serum albumin level.Comparison of the prediction of death between candidate SI models using the dataset for SI validation.