The results are maintained in relation to the IgM [OR = 3.080 (95% CI = 1.9–4.95e + 6); p = 0.03;] and IgA [OR = 8.8 (95% CI = 1.2–66.0); p = 0.03] titers and clinical outcome with an increased association between these tests and the outcome of having HD. The gene discussed is CD79A; the disease is Huntington disease.