Table 7.

Presence of afaC+, pks+ E coli in patients with CD, colitis and colon cancer compared with controls (using total number of E coli as the denominator)†

	afaC+, pks+	afaC−, pks−	p Value*
CD	13	58	NS
CRC	35	85	0.0119
UC	17	34	0.0082
Controls	3	36

*p Values obtained using χ² test (Yates-corrected).

†Presence or absence of afaC and pks is based on PCR assay.

afaC, gene encoding afimbrial adhesin outer membrane usher protein; CD, Crohn's disease; CRC, colorectal cancer; pks, polyketide synthase gene complex; UC, ulcerative colitis.