GAPDH and epilepsy: When NPSLE patients were grouped into the anti-GAPDH elevated group (AU ≥ 55.09, n = 24) and anti-GAPDH normal group (AU < 55.09, n = 11) by the cut-off value (AU = 55.09) produced by ROC analysis in Supplementary Table 2, it was also found that the anti-GAPDH autoantibodies were associated with increased incidence of cerebrovascular lesions (P = 0.034) but decreased occurrence of seizure disorders (P = 0.041, Supplementary Table 2).