Haplotype 1 (FcγRIIa‐H131R‐ FcγRIIIa‐V158F‐ FcγRIIIb‐NA1/2) and the FcγRIIIb‐NA2/2 genotype were significantly prevalent among anti‐GM1 antibody‐positive patients than antibody‐negative patients with GBS; however, these associations were lost after Bonferroni correction (P = 0.031, OR = 9.61, 95% CI = 1.24–74.77; Pc = 0.279 and P = 0 .027, OR = 1.62, 95% CI = 1.06–2.5; Pc = 0.081; respectively; Table 5). Here, FCGR3A is linked to Guillain-Barre syndrome.