Compared with no all-cause mortality, the all-cause mortality group had higher age, more men, smokers, and a higher prevalence of HF, MI, AF, stroke, and CKD, as well as higher levels of heart rate, uric acid, homocysteine, Hs-CRP, fibrinogen, and D-dimer, and higher rates of β-blocker, and discharge hypoglycemic drugs use. The gene discussed is CRP; the disease is atrial fibrillation.