GSTM1 and arteriosclerosis: In the univariate linear regression analysis, IFTA (R = − 0.327, p < 0.01), diffuse lesion (R = − 0.396, p < 0.01), nodular lesion (R = − 0.366, p < 0.01), exudative lesion (R = − 0.293, p < 0.01), mesangiolysis (R = − 0.261, p < 0.01), arteriolar hyalinosis (R = − 0.225, p < 0.01), and arteriosclerosis (R = − 0.229, p < 0.01) negatively correlated with Hb level.