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Clinical remission statusa at week 14 in patients with ulcerative colitis, stratified by estimated vedolizumab concentration quartiles from low (quartile 1) to high (quartile 4) at weeks 2, 4 and 6. P values were determined using the exact Cochran‐Armitage trend test. aClinical remission was defined as a partial Mayo Score of ≤2 points with no individual sub‐score >1 point. Patients were not case‐matched for this analysis
