We found that the value of NT‐proBNP (HR 2.625, 1.654‐4.166, P < .05), CKMB (HR 4.279, 1.887‐9.703, P < .05), and LVEF (HR 0.01, 0.001‐0.352, P < .05) were significantly closely associated with AF at the beginning of admission (Table 3). This evidence concerns the gene NPPB and atrial fibrillation.