Diagnostic delay in inflammatory bowel disease increases the risk of intestinal surgery

Table 5 Risk factors associated with Crohn’s disease related surgery

	Intestinal surgery			Any surgery
Variables	OR	95%CI	P value	OR	95%CI	P value
Age	0.99	0.96-1.03	0.743	1.00	0.97-1.03	0.973
Male	0.41	0.14-1.22	0.108	0.94	0.36-2.45	0.902
Smoking	1.90	0.74-4.87	0.182	1.10	0.51-2.38	0.812
Location
L1	1 (Ref.)	-	-	1 (Ref.)	-	-
L2	1.19	0.32-4.50	0.793	1.74	0.57-5.31	0.332
L3	0.53	0.17-1.71	0.291	0.82	0.32-2.09	0.676
L4	1.07	0.29-3.97	0.924	0.91	0.28-2.94	0.878
Behavior
B1	1 (Ref.)	-	-	1 (Ref.)	-	-
B2	4.44	1.67-11.8	0.003	2.93	1.30-6.60	0.009
B3	3.79	1.14-12.6	0.030	3.67	1.40-9.60	0.008
Perianal disease	0.97	0.20-4.81	0.968	1.84	0.69-4.87	0.222
CRP at diagnosis	1.02	0.96-1.08	0.520	1.01	0.96-1.06	0.792
Delayed diagnosis	2.54	1.06-6.09	0.036	1.76	0.87-3.57	0.119

CD: Crohn’s disease; CRP: C-reactive protein; CI: Confidence interval; OR: Odds ratio.