ALB and inflammatory bowel disease: Using univariable and multivariable linear regression analyses, age (r = −0.49, P < 0.01), disease duration (r = 0.39, P < 0.05), platelets (r = −0.29, P < 0.01) and fecal calprotectin levels (r = −0.32, P < 0.05, n = 36) were independently associated with albumin-adjusted serum free thiols in the IBD cohort (Table 3 and Figure S3).