Similarly, no significant difference was observed examining the seropositivity status of IgA and IgG in patients with stroke compared to controls (IgA: SMD 0.81, 95% CI 0.39 to 1.65, p‐value = 0.56; IgG: SMD 1.13, 95% CI 0.94–1.36, p = 0.19). This evidence concerns the gene CD79A and stroke disorder.