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

Table 6 Risk factors associated with ulcerative colitis related surgery

	Intestinal surgery
Variables	OR	95%CI	P value
Age	1.00	0.93-1.07	0.986
Male	1.18	0.17-8.37	0.868
Smoking	0.82	0.05-13.8	0.890
IBD family history	5.39	0.44-66.5	0.189
Location
Proctitis	1 (Ref.)	-	-
Left sided	0.85	0.10-7.24	0.878
Pancolitis	1.05	0.12-9.46	0.969
Severity1
Mild	1 (Ref.)	-	-
Moderate to severe	2.67	0.24-30.2	0.427
Delayed diagnosis	6.81	1.12-41.4	0.037

¹The severity was classified according to the Mayo score. UC: Ulcerative colitis; IBD: Inflammatory bowel disease; CI: Confidence interval; OR: Odds ratio.