Table 2.

Main laboratory data and disease activity scores of Crohn’s disease and ulcerative colitis patients included in the study (evaluated at the time of lowest Hb levels)

Diagnosis	CD	UC	P value
Median Hb (g/dL IQR)	12.1 (10.5-13.5)	12.5 (10.8-13.8)	0.002
Median CRP (mg/L, IQR)	0.42 (0.13-1.08)	0.33 (0.11-0.84)	0.29
Median ESR (1st h, IQR)	10 (6.0-17.0)	10 (6-19)	0.93
Median ferritin (ng/ml, IQR, results in 287 patients)	40.0 (14,3-67.8)	23.5 (13.8-70.0)	0.34
Median HBI (IQR)	4 (1-7)	--	--
Median UCAI (IQR)	--	3 (1-7)	--

CD, Crohn’s disease; IBD, inflammatory bowel disease; UC, ulcerative colitis; Hb, hemoglobin, IQR: interquartile range; CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; HBI, Harvey-Bradshaw index; UCAI, ulcerative colitis activity index