Table 5 Statistical relationship between the presence of virulence factors in patients with inflammatory bowel disease and control subjects.

Disease	Virulence factor	p Value
IBD	⩾2 adhesins	0.03*
IBD	B2+D	0.04*
IBD	Adhesins	0.07
IBD	SPATE(s)+adhesin(s)	0.15

Genotype	Virulence feature	p Value
B2+D	SPATE(s)+adhesin(s)	0.002**
B2+D	Adhesins	0.04*
B2+D	SPATE	0.02*
B2+D	APEC	0.04*

APEC, avian pathogenic E coli; IBD, inflammatory bowel disease; SPATE, serine protease autotransporters.

*p<0.05, **p<0.01.