Table 2.
RA (n = 17) | SpA (n = 91) | |||||
---|---|---|---|---|---|---|
MTX treatment | ATIpos | ATIneg | P value | ATIpos | ATIneg | P value |
MTX+ | 3 | 6 | 0 | 25 | ||
MTX- | 4 | 4 | 0.8 | 14 | 52 | 0.03 |
aATI: antibodies toward infliximab; ATIpos: ATI detected at least once during follow-up; ATIneg: ATI not detected; RA: rheumatoid arthritis; SpA: spondyloarthritis; MTX: methotrexate. Data represent number of patients in each category.