GSTM1 and autosomal dominant cerebellar ataxia: Hb (beta = -0.25, 95% CI: -0.16 to -0.003, p = 0.04) and HC treatment (beta = -2.09, 95% CI: -0.41 to -0.012, p = 0.038) were independently associated with PLT-derived MPs in SCA children.