The distribution of the NQO1 rs1800566 genotype and allelic frequencies did not differ between each MS clinical evolutive type and controls (Table 3) or in the severity scores: Expanded Disability Status Score or EDSS (p = 0.508 and p = 0.370 for heterozygous and homozygous carriers of the minor allele, respectively, as compared with homozygous carriers of the major allele) or progression index (p = 0.872 and p = 0.673 for heterozygous and homozygous carriers of the minor allele, respectively, as compared with homozygous carriers of the major allele). Here, NQO1 is linked to myeloid sarcoma.