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Correlation between changes in mean VAS score and changes in CDAI (a), HBI (b), PRO2 (c), PRO3 (d), fecal calprotectin (e) and CRP (f). Spearman’s rank correlation coefficients are provided (rs). BSFS, Bristol stool form scale; CDAI, Crohn’s disease activity index; CRP, C-reactive protein; HBI, Harvey Bradshaw index; PRO, patient-reported outcome; VAS, visual analog scale.
