ALB and colitis: In the CD cohort, platelets (r = −0.51, P < 0.05) and disease duration (r = 0.39, P < 0.05) were independently associated, whereas in the UC cohort, the white blood cell count (WBC) (r = −0.41, P < 0.05) and Simple Clinical Colitis Activity Index (SCCAI) (r = −0.34, P < 0.05) were independently associated with albumin-adjusted serum free thiols (Tables S1 and S2).