In the univariate analysis, several factors were significantly associated with prolonged LOS, including sex, smoking history, drinking history, hypertension, CHD, CI, PSH, AST, ALT, TGs, NLR, LMR, PLR, NPAR, CREA, UA, LDL-C, HDL-C, ALB, and GFR (p < 0.05). Here, ALB is linked to hypertensive disorder.