The levels of LMR (P < 0.001), LDL (P < 0.001), ALB (P < 0.001), TGs (P < 0.001), TC (P < 0.001), HDL (P = 0.007), and blood calcium (P < 0.001) in the AF group are lower compared with those in the non-AF group (Table 2). The gene discussed is ALB; the disease is atrial fibrillation.