Table 4.

Univariate logistic regression analysis demonstrating the relationship of anemia and selected characteristics of the inflammatory bowel disease patients

Characteristic	OR (95% CI)	P
Diagnosis (CD)	0.74 (0.62-0.88)	0.006
Age	0.99 (0.99-1.01)	0.75
Female gender	0.76 (0.63-0.91)	0.003
Disease duration	1.01 (0.99-1.02)	0.31
CRP	1.37 (1.26-1.49)	<0.0001
ESR	1.03 (1.02-1.04)	<0.0001
HBI	1.07 (1.04-1.10)	<0.0001
UCAI	1.07 (1.04-1.10)	<0.0001
Use of immunomodulators	1.51 (1.24-1.82)	<0.0001
Use of biologics	2.00(1.58-2.52)	<0.0001
Surgery for IBD	2.77 (2.28-3.35)	<0.0001

OD, odds ratio; CI, confidence interval; CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; IBD, inflammatory bowel disease; HBI, Harvey-Bradshaw index; UCAI, ulcerative colitis activity index