After adjusting for age, sex, marital status, smoking, hypertension, CVD, depression, CKD, physical activity, ALT/AST, A/G, NLR, and BMI, patients with a high DII had a significantly greater risk of all-cause mortality than those with a low DII (HR = 1.21, 95%CI: 1.02–1.44, P = 0.025) (Table 2). This evidence concerns the gene GPT and major depressive disorder.