Frequency, types, and treatment of anemia in Turkish patients with inflammatory bowel disease

Table 5 Factors associated with anemia by logistic regression in patients with Crohn’s disease and ulcerative colitis at the diagnosis

	Odds ratio	95%CI	P value
All IBD patients
Sex (female)	3.19	2.07-4.91	< 0.001
Corticosteroids	3.21	1.52-6.80	0.002
AZA/MTX	2.28	1.48-3.49	< 0.001
Anti-TNF (INF/ADA)	2.32	1.30-4.11	0.004
Elevated CRP	2.75	1.78-4.24	< 0.001
Crohn’s disease
Sex (female)	4.10	2.19-7.68	< 0.001
Corticosteroids	4.06	1.27-12.96	0.018
AZA/MTX	2.30	1.26-4.20	0.006
Anti-TNF (INF/ADA)	2.34	1.20-4.53	0.012
Elevated CRP	3.05	1.67-5.58	< 0.001
Ulcerative colitis
Sex (female)	3.12	1.58-6.18	0.001
Corticosteroids	3.62	1.22-10.67	0.02
Elevated CRP	2.03	0.96-4.26	0.062
Disease extension	3.79	1.51-9.55	0.005

IBD: Inflammatory bowel disease; E: Disease extension (for ulcerative colitis); E1: Ulcerative proctitis; E2: Left-sided ulcerative colitis; E3: Extensive disease; AZA: Azathiopurine; MTX: Methotrexate; IFX: Infliximab; ADA: Adalimumab.