Among the patients with AF, the RA group had larger LA-EAT volume (31.53 ± 11.02 mm3 vs. 22.56 ± 9.58 mm3, p < 0.001) and LA-EAT/total EAT ratio (23.02% ± 3.62% vs. 18.74 ± 3.38 mm3, p < 0.001) than those in the non-RA group (Figures 2B,C). This evidence concerns the gene MCL1 and rheumatoid arthritis.