Factors associated with surgery in patients with intra-abdominal fistulizing Crohn's disease

Table 3 Multivariate analysis of patients who underwent surgery up to one year following imaging study

Parameter	RR (95%CI)	P value
Two fistulas	1.52 (0.65-3.5)	0.330
Three or more fistulas	9.23 (0.99-85.8)	0.051
Stricture	2.70 (1.02-7.1)	0.045
Entero-vesical fistula	3.61 (0.81-16.0)	0.090
Entero-cutaneous fistula	2.18 (0.82-5.8)	0.120
Anti-TNF before imaging	2.63 (0.71-9.8)	0.150
Anti-TNF + IM before imaging	3.86 (0.90-16.6)	0.070

IM: Immunomodulators; TNF: Tumor necrosis factor.