Comparison of FCGR3A-158V allele frequency between RA patients and healthy individuals revealed no statistically significant difference: 48.7% of patients with RA were homozygous or heterozygous with respect to FCGR3A-158V, as compared with 42.4% of healthy individuals; and 51.3% of patients with RA were homozygous with respect to FCGR3A-158F, as compared with 57.6% of healthy individuals (χ2 = 1.04 with one degree of freedom; P = 0.245; Table 1). This evidence concerns the gene FCGR3A and rheumatoid arthritis.