Anticitrullinated protein antibody (ACPA) in rheumatoid arthritis: influence of an interaction between HLA-DRB1 shared epitope and a deletion polymorphism in glutathione s-transferasein a cross-sectional study

Table 1 Characteristics of rheumatoid arthritis study patients^a

^aACPA, anticitrullinated protein antibody; GSTM1, glutathione S-transferase Mu-1; SE, shared epitope; SONORA, Study of New-Onset RA; VARA, Veterans Affairs Rheumatoid Arthritis Registry. ^bP < 0.05 for differences between VARA and SONORA.

ISSN: 1478-6362