APOB and diabetes mellitus: Significant differences were observed between the simple heart failure (SHF) group and the CRS group in terms of age, history of diabetes mellitus, levels of triglycerides (TG), apolipoprotein A1 (apo-A1), apolipoprotein B (apo-B), ApoB/ApoA1 ratio, and serum creatinine (Scr).