Fig. 5From: TWEAK-binding autoantibodies are generated during psoriatic arthritis and are not influenced by anti-TNF therapyRelationship of serum TWEAK levels or anti-TWEAK antibody levels to disease duration and BASDAI. Spearman’s correlation analysis was used to test for correlations. Spearman coefficients (r) and p values (p) are indicated in each plotBack to article page