Prevalence and risk factors of depression among patients with perianal fistulizing Crohn’s disease

Table 4 Multiple linear regression analysis of perianal fistulizing Crohn’s disease patients with depression

Factor	β value	t value	P value	95%CI	R2
Smoker	0.124	0.09	0.928	-2.58 to 2.83	0.650
CD activity index	0.006	0.96	0.341	-0.01 to 0.02
ESR in mm/h	0.005	0.25	0.804	-0.03 to 0.04
CRP in mg/L	-0.006	-0.32	0.746	-0.04 to 0.03
FC in µg/g	0.000	0.78	0.440	0.00 to 0.00
PDAI score	-0.134	-1.06	0.292	-0.39 to 0.12
Wexner score	-0.069	-0.88	0.380	-0.23 to 0.09
Modified Van Assche index	0.166	2.22	0.028	0.02 to 0.31
IBDQ score	-0.116	-8.58	0.000	-0.14 to -0.09
IBD-F score	0.169	1.61	0.109	-0.04 to 0.38

CI: Confidence interval; CD: Crohn’s disease; CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; FC: Fecal calprotectin; IBD-F: Inflammatory Bowel Disease Fatigue; IBDQ: Inflammatory Bowel Disease Patient Quality of Life Questionnaire; PDAI: Perianal Disease Activity Index.